Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas - 89 | Lera Boroditsky on Language, Thought, Space, and Time

Episode Date: March 23, 2020

What direction does time point in? None, really, although some people might subconsciously put the past on the left and the future on the right, or the past behind themselves and the future in front, ...or many other possible orientations. What feels natural to you depends in large degree on the native language you speak, and how it talks about time. This is a clue to a more general phenomenon, how language shapes the way we think. Lera Boroditsky is one of the world's experts on this phenomenon. She uses how different languages construe time and space (as well as other things) to help tease out the way our brains make sense of the world. Support Mindscape on Patreon. Lera Boroditsky received her Ph.D. in cognitive psychology from Stanford University. She is currently associate professor of cognitive science at UC San Diego. She serves as Editor in Chief of the journal Frontiers in Cultural Psychology. She has been named one of 25 Visionaries changing the world by the Utne Reader, and is also a Searle Scholar, a McDonnell scholar, recipient of an NSF Career award, and an APA Distinguished Scientist lecturer. Web site UC San Diego web page Google Scholar publications Wikipedia Talk on How Language Shapes the Way We Think Twitter

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Starting point is 00:00:55 These products have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Hello, everyone, and welcome to the Mindscape podcast. I'm your host, Sean Carroll. We've talked a lot on the podcast about the idea of thinking and consciousness, right? What is it that is going on inside our heads, inside our brains, that makes us a conscious living being? Of course, a lot of what we know about consciousness is first person, right? We know about our own consciousness from thinking about what's going on inside our heads.
Starting point is 00:01:24 What do we know about how other people are doing their thinking? course, you need to be able to communicate. You can observe people and just sort of be completely scientific about it, but most of our experience with the thoughts of other people comes from talking to them, reading them, talking about them, and so forth. So to facilitate this kind of communication, human beings invented language, a symbolic system that lets us represent things and then talk about them. It's then very natural to ask, how much is the way that we think influenced by our language? When we make different choices about how language should work, those choices can then affect how we actually do our thinking.
Starting point is 00:02:05 There's an idea called the Superior War of Hypothesis back in the early days of the 20th century. The strong version of it said that language actually determines how we think. You can't think in ways other than the ways that language gives you. No one really believes that anymore, but there's a weaker version that says that language influences how we think, and a growing number of psychologists actually believe that. Today's guest is Lira Boroditsky, who is a neuroscientist and psychologist. She's associate professor of cognitive science at UC San Diego. And I got to know her because in her work on neuroscience and psychology and language,
Starting point is 00:02:42 she talks a lot about time, right? Time is one of my favorite things, so we end up at the same conferences. But the point is, when we talk about time, interestingly, we very often use spatial metaphors. You talk about moving the meeting forward. What is that supposed to mean? How do you move a thing in time forward or backwards? Does moving something forward an hour mean it's an hour earlier or an hour later?
Starting point is 00:03:06 Well, that depends on whether you metaphorically think of yourself as moving forward in time or the meeting as moving toward you as you stay stationary. Neither one of those ideas is correct or incorrect. They're just metaphorical choices that relate a spatial picture to the the time language that we use. So Lara has studied how different cultures use language, particularly to talk about time, but in other ways as well, and you'll figure out that not everyone uses just simple forward-backward language.
Starting point is 00:03:38 There are cultures and languages that relate time to up and down. There's cultures and languages that relate to what compass direction you're pointing in, or where the big mountain on your island is. This kind of stuff illuminates how we think about the world in very interesting ways. We have a long way to go to figure it out. But Lara's research is a wonderful window onto the weird ways in which we, without even knowing it, shape the way that we think. This summer, agey jeans looks to California wine country for inspiration, where style feels effortless and time naturally slows down. The summer 2026 collection reflects that mindset with premium denim washes, relaxed silhouettes and refined details, designed for real estate.
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Starting point is 00:05:49 epidemic, pandemic that we're kind of all facing. It's not really very helpful, but it's something to do, something to give me a sense of contributing some way. I know a lot of people are at home, a lot of people are worried. Maybe we can have some videos, talk about how the universe works. Maybe that will be a fun thing to do. So look for that, links to that on my Twitter feed and webpage and so forth. And what I hopefully will be doing is releasing short videos and then a couple days later doing also short question and answer sessions where after the first video is released you leave some questions on YouTube
Starting point is 00:06:22 or on Twitter and then I'll try to answer some of the best ones. So we'll see how that goes. I hope everyone is staying safe, washing your hands, social distancing, all those things that we need to do. You know, it's a delicate balance that we have to strike. We have to be careful.
Starting point is 00:06:39 We have to take care of ourselves and we have to think about the welfare of others. But we also have to not panic and we also have to keep living our lives. And it's not at all obvious how to do that. I hope you're all doing it the best we can. So with that, let's go. Lara Borditsky, welcome to Mindscape Podcast. Thanks for having me. So I am a physicist. I think about space and time, but you know, time, probably my favorite dimension in space time. I wrote a book about time and, but from a physics point of view, and one of the little factoids that I got was that
Starting point is 00:07:24 the word time is the most used noun in the English language. It is, yeah. This is sometimes reported as news, but it's been true for hundreds of years. But actually, it's also very commonly used in lots of other Indo-European languages. So words like time are in the top ten across lots and lots of languages. We seem to be obsessed with it. Is it less true in other, in non-European-European languages? I just haven't checked. Okay, we just haven't checked.
Starting point is 00:07:49 There's 7,000 languages. Yeah, you can't look through all of them. That's a good little PhD project. But, you know, we use the word time in many different ways in English, so it's a bit of a cheat to say it's the most frequently used words. So because we can say, how much time do you have, or how many times have you seen it, or time after time, or I'll see you another time. All of those are actually different uses of the word time, where you can even say time me,
Starting point is 00:08:12 you know, in which case you're using it as a verb. Right. So it's a bit of a cheat, but still we're talking about time a lot. Well, it indicates because a lot of people think that time is somehow mysterious, and certainly we're able to use it, right? We're able to capture it, and, you know, we know what we mean when we say be at the seminar at 1 p.m. or something like that. that operationalizes very straightforwardly into the world. Well, we've created conventions that we require each other to follow, but those conventions
Starting point is 00:08:41 aren't actually that important in a lot of other places. So if you're living in a village in the jungle, making an appointment for Tuesday, for example, is not that useful unless something happens in your life on a regular seven-day schedule, and actually Tuesdays are in some important conventional way different from other days. If not, then the seven-day week is a completely arbitrary imposition on the flow of time. And in fact, lots of other cultures have different weak structures that they follow. Well, this is, I really want to get into this about how the interplay of the language that we use and the reality that we perceive around it. But first, you know, you have all these wonderful examples of the relationship between spatial metaphors and our use of time.
Starting point is 00:09:25 So, you know, why don't we just start with a classic question of, let's move next week's meeting. forward. Yeah. So if you ask people, next Wednesday's meeting has been moved forward two days. What day is the meeting now that it's been rescheduled? People often have a very strong intuition about what the answer is, but about half the people think that it's Monday and about half the people think that it's Friday. And the reason is we can talk about time two different ways in English. We can talk about ourselves as it's moving in time. So we can say things like we're approaching the deadline, we're coming up on the holidays. So we're moving across a stationary path, which is time, right, from the past to the future.
Starting point is 00:10:11 Or we can talk about time is moving. So the deadline is coming up. The holidays are approaching, right? So we're stationary in time, events and time are moving towards us. These are two different perspectives. And so if you're thinking if yourself is moving in time, then the meeting moves forward in your direction of motion from Wednesday to Friday. but if you're thinking about time moving towards you, then forward is in the direction of motion of time
Starting point is 00:10:35 from Wednesday to Monday. And what we find actually is getting people to think about themselves moving in space, like scooting in a chair to a goal, or something coming towards them, like bringing a chair to them, using a rope, something like that. That will change the perspective that they take on time. So if you're thinking about yourself moving through space, you'll say the meetings on Friday.
Starting point is 00:10:58 So you prime them in some sense by, making them think about this. Yeah, we get them to imagine one spatial scenario or another. And when they're imagining themselves moving in space, they get this seemingly unrelated question about next Wednesday's meeting, and it changes their answer about the meeting, because the way we think about space and time are so closely related. The 50-50 is fascinating because you'll have other examples that we'll get to about how people in different languages or different cultures think about it.
Starting point is 00:11:24 But this is the same culture, the same set of people using the same words, and still it's almost equally split. Are there correlations between, you know, personality types? Do like nervous people think of it one way and relax people think of it the other way? People have tried looking for personality correlations and there have been some small studies. I think it's, I think I'd want to see larger samples to really, to really be sure. But, you know, what we find is that even though people might have an original intuition, like if you don't prime them, they have an original intuition, they say, they're minder or Friday, you can get a whole lot of people to switch.
Starting point is 00:11:57 So it's pretty loose. It's not deeply angry. Yeah, and it's just that that use of the word forward is ambiguous in English, just like most other words are ambiguous. It's just in this case you can get it to be ambiguous to mean one thing or the opposite of that thing. And presumably it's all completely unconscious that we're even using that as a spatial metaphor, right?
Starting point is 00:12:16 We just use the word and people think they know what it means. Yeah, and it's almost impossible in English to talk about time without using spatial words. So for example, if you want to talk about duration in English, there's no way. no word like duracious. Right. You have, yeah, you say long or you say how much time did it take, right? So you talk about amount, you talk about distance. Other languages might have dedicated words that you use only for duration, not for distance, but in English, it's almost impossible to talk about anything with time without using words that were originally spatial. So you might say, I'll see you at three o'clock on Tuesday, in an hour.
Starting point is 00:12:56 That's interesting because those are spatial prepositions. Yeah, I mean, most people sort of think that the 20th century realization that space and time are part of the same thing was like this big counterintuitive thing, but they were always, at least very metaphorically related to us.
Starting point is 00:13:11 The way that we think about lots of abstract things that we can't see is often spatial. So we kind of use our visual spatial abilities to allow us to imagine and organize a lot of other things that are abstract. So whether it's talking about stocks, prices going up and down, or emotions going up and down, there are lots of things that are kind of nebulous or not directly perceivable by the
Starting point is 00:13:35 senses that we just map into space and that makes it seem like we can handle it then in our minds and manipulate it and think about it more easily. This is probably already hinting at some relationship between how the brain works, right, and how we develop these things. I did a wonderful podcast with Lynn Kelly about memory palaces, you know, building these little structures that have interesting shapes and they let you remember things. So again, analogizing things in space to things you want to remember makes it much easier. Yeah, we're very, we do have a lot of capacity for organizing things in space. We have a lot of experience of navigating spaces in our actual lives and our actual physical
Starting point is 00:14:12 experience. And so then we can draw on that to reason about lots and lots of other things. Are we allowed to say that maybe the spatial capacities evolved first before we had a nuanced grasp of time and other things? I don't know that that would be the case. I think a lot of modern work on neuroscience shows that there are cells that mark locations in space time. The things that we used to think were spatial cells are really more like context.
Starting point is 00:14:41 Yeah, okay, good. And so... We were at a meeting together about this, a very idea, right? Yeah, neurons in space time, yeah. And so certainly lots of even extremely primitive. organisms need to do timing, right? So in order to perform even the most basic motor action, you have to be able to time things. You have to move one thing and then the other. And so certainly very basic senses of time exist throughout the evolutionary tree. The way that we end up thinking
Starting point is 00:15:11 about time once we start thinking about the deep past or thinking about moving events and things like that, that of course starts leveraging a very different system. But even within the human mind, how we do timing is really distributed around the brain. So if you're doing millisecond timing for motor movement, a lot of that is going to be in the cerebellum at the back of your brain. Okay. But if you're thinking about something that's on an order of a second or more than 30 milliseconds or more than 30, yeah, more than 30 milliseconds, it's going to be a little bit further forward in the brain. If it's something like a minute, it's going to be the frontal cortex.
Starting point is 00:15:51 I didn't know that. Okay. So is that clearly sort of monotonically related? It's not that it's monotonically related. It's just there are really different functions. Keeping track of a minute is a really different task than controlling your fingers to play the piano. Right. Even the book, we would call them both timing. There's just different. The mechanisms are totally different for doing those things. And you have this wonderful set of examples about how the spatial metaphors and time are different in different cultures. So arrange a set of things in duration, right, or in, I guess,
Starting point is 00:16:22 when they happen. And that relates to how you read and things like that? There are lots of cultural practices that shape how we correlate space and time. So reading direction certainly makes a difference. So if you read from left to right, you're likely to think that earlier things are on the left and later things are on the right. And so if I give you a set of pictures of someone at different ages. For example, you're likely to put the youngest pictures on the left and the oldest pictures on the right. But if I give the same task to someone who reads from right to left, like Arabic or Hebrew, then they're likely to put the earliest pictures on the right and the latest pictures on the left. So the way that we scan the world or organize events
Starting point is 00:17:06 in our minds is set by this very simple convention of which direction your language is written. And even just the way you imagine an event unfolding. So, for example, if I ask you, imagine Bill is giving flowers to Mary, draw me a picture of that. If you ask an English speaker to do that, they're likely to put Bill on the left and Mary on the right. The action is going from left to right. But if you ask an Arabic speaker to do that, they're likely to put Bill on the right and Mary on the left. So they're imagining, quote, unquote, the same event, but it's unfolding in these different directions depending on their practice. and writing.
Starting point is 00:17:42 And that must be just some arbitrary accident of history. Who chose what? Right? Left to write or right to left? It's a little bit less than arbitrary. It had to do with what kinds of writing implements you had and how much smudging you would have depending on what you were using to write with. Or if you're using a hammer and chisel, for example, you would hold the hammer in
Starting point is 00:18:02 your dominant hand, the chisel in your less dominant hand as opposed to if you're writing with ink, you're going to use your dominant hand. Because most people are right-handed, it makes more sense to go in one direction with some implements and in the other direction with the other implements. So depending on when your writing system was being developed, and some have switched directions when the implements changed. Yeah, I remember thinking when I first heard about this stuff, even just within physics, there are subfields within physics that draw pictures in their papers of how time is flowing, almost never from right to left, but frequently from left to right from top to bottom or from
Starting point is 00:18:39 bottom to top. There's no, you know, cosmologists and people who do relativity, time flows upward, but computer scientists, time flows downward, and I really don't know why. It's not because we use different implements or anything like that. So it is, it is interesting. And different cultures have up and down also metaphors for time? Yeah, so in Mandarin, for example, there is a strong up-down metaphor, so earlier events are above, later events are below. Earlier as above. Okay, so time flows down. Well, the past is up and the future is down. That's a safer way of saying.
Starting point is 00:19:14 I don't know. Are you moving? It's time moving. We have to set that also, right? That's right. So if we think of ourselves as stationary, then you would say that time is moving. Events and time are flowing up so that earlier things end up further and further up above you. Okay, that's right. But the way you would use the metaphors in Mandarin would be, for example, to say the last month, you would say the up month. and the next month is the down month.
Starting point is 00:19:38 And what we've seen in a lot of studies is that Mandarin speakers actually do use this organization in their minds privately when they're organizing events and times. How do you test something like that? Well, you can do it in lots of ways. I'll tell you the simplest one, which is I can stand next to you and I point to a spot in front of your body and say, suppose I told you this here is today, where would you put yesterday and where would you put tomorrow? and then you just have to point somewhere in space. And when you do that, English speakers will almost always organize things from left to right. So they'll put yesterday on the left and tomorrow on the right.
Starting point is 00:20:14 Whereas Mandarin speakers will often organize things vertically, putting yesterday above and tomorrow below. You can also see that in spontaneous gestures. So just get people talking about time, and they'll start using their hands because we like to use their hands when we talk. And so you can see that. And you can also set up little experiments where you've recorded. people to push a button that means earlier or later,
Starting point is 00:20:36 and you are very meanly either placing that button above or below the start button, and you see which one is harder for people. So if they have already in their minds an implicit association that up is earlier, it should take them longer to respond when you very meanly place the button in the wrong place. And so you can measure that across lots of cultures.
Starting point is 00:20:55 This is a technique, right, in psychology, because I don't know a lot about it, of figuring out things that people don't even know about themselves, about themselves by figuring out how long it takes them to do something. Is this, how reliable is this? How good is this? Or is it perfectly established? Well, the technique I'm describing would broadly be a test of implicit association. So you're asking what implicit associations do people already have? And whatever is automatic or whatever is very ready for you to do is going to be easier to do, right? You're going to be able to do that task faster. And so often we set up exactly the kind of thing
Starting point is 00:21:31 I describe where you say, well, would it be stressful or difficult for you if I arrange things in a way that's different from the norm? And so for English speakers, for example, it doesn't matter for them if I put the earlier key above or below. They don't have a strong association that goes either way. Whereas for Mandarin speakers, they're faster if it's above than if it's below. And so that tells us that there is this implicit association that they have an expectation that those things are associated, that they have to override when I do it the wrong way
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Starting point is 00:23:02 PolicyGenius will always get the future wrong, better get life insurance right. Okay, I just want to keep getting all these wonderful examples on the table. You also have examples of just the fact that we have the words, past, present, future, but some languages slice the bloney much more finely than that and some less, I suppose.
Starting point is 00:23:23 Yeah. Well, the way that languages treat time grammatically really differs, So, for example, in some languages, there is no past tense. There is no future tense. There's no tense marking on verbs at all. In fact, verbs never change. There are verbs, but they're not tensed.
Starting point is 00:23:43 Yeah. With some people argue whether or not they're verbs, but that's a different discussion. Yeah, so the way you would say that, you know, if someone, if I show a picture of someone who's about to kick the ball, someone in the process of kicking the ball, someone who's just kicked the ball. there are some languages where you would just say, hit, kick, ball in all three cases. Ball kick. Yeah.
Starting point is 00:24:08 And then there are other languages that make much finer distinctions. So in some languages, there might be five different past tenses, depending on how long ago something occurred. Right. So if it was within a week, that's one tense. If it's within a month, it's another tense, and so on. And so you really have to keep track of how long ago something was and make sure you use the correct tense.
Starting point is 00:24:29 And does that affect how people think about, time? Are they better at knowing how long ago things were if they have those words available? You know, there hasn't been an empirical test of exactly that that language that I was just describing as a minority language spoken in Papua New Guinea, so it would be quite challenging to do. Not impossible. Not many tests of subjects, yeah. But it would be really interesting to see. In general, the prediction would be that whenever you make a distinction, you see things that fall in the category together as being more similar, and you see things that are in different
Starting point is 00:25:03 categories that fall on different sides of that, the category boundary as being more different. So if your language makes a distinction between things that happened up to a week ago and other things, then you really have a separate category in your mind for things that have happened within the week, and those are seen as different from things that have happened within the month, but not within the week. And somehow in your brain, they keep changing category. as a week goes by. That's just what's weird to me.
Starting point is 00:25:30 Yeah, they have to continuously fade, fade into new categories. I mean, I wonder, this is probably an unfair question, but do we know enough about how the brain works to say that these memories are in our brains, but they get reclassified as they pass the boundary? Or do we sort of have to think about, oh, that was three weeks ago, so, okay, it's in this category?
Starting point is 00:25:54 Well, we don't know enough about the brain to know that. I can make an educated guess, which is that when you're about to tell someone about an event, you're retrieving elements. And when you're retrieving, you're adding information as well. This is true in any retrieval case, right? So if I ask you about a birthday party that you attended, you'll be able to retrieve some details that may be you directly experienced, but you're also going to fill in a lot of other details from general knowledge that you have
Starting point is 00:26:23 about birthday parties and what you're like at birthday parties and all kinds of other general knowledge that you have. And so it's in that context of retrieval that that information gets added or gets reclassified. So I guess we have this naive metaphor based on computers or something like that, that images or files have timestamps, right? But probably memories are not quite that simplistic, although clearly we do have some ability to remember when things happened, but I don't know exactly how it works. Yeah. Well, we're remembering context, right? So with every memory there's going to be context that you store away. You might know that it must have happened before this
Starting point is 00:27:02 because you hadn't yet known about that, or you might know that a particular person was there and you didn't yet know that person before such and such a time. So you can often use context to try to. Yeah, I mean, that's interesting. It's not that it has a timestamp. It's that one memory is sort of connected to all these other memories and we can reconstruct when it must have been.
Starting point is 00:27:22 Exactly. But we certainly don't have a timestamp. Mostly we're terrible at remembering when things happen, which maybe for the best, it's not usually that important. But imagine if you had an exact timestamp for every event that occurred. How fine-grained would you want that? Like every time you picked up a fork. I think in general, you kind of know the relationship between events in your life, more or less.
Starting point is 00:27:52 Do you think in general that the fact that we're so used to computers now has given us a bad idea of how the brain probably works because they're pretty different? So we do have a tendency to compare brains to whatever is the most complicated technology available at the time, right? So it used to be that the most common metaphors for thinking were clay tablets. And then after clay tablets, maybe it was the abacus. And then it was a calculator. And then it was a telephone switchboard because those were very complicated. And then it was the computer and maybe now it's the internet. And so people draw on whatever complex things they have around to try to understand this other extremely complex thing.
Starting point is 00:28:31 You see that in all branches of science, right? So in physics, the atom used to be a ball, and then it was a bowl of pudding with raisins in it. And then it was the solar system. Right. And it's a cloud. And so you have these metaphors that drive hypotheses that drive thinking, drive debate. and they're always evolving. And I guess we shouldn't just talk about spatial metaphors for time,
Starting point is 00:28:56 but even I want to say spatial metaphors for space, right? How people think about space can be very different, how people think about directions in space, for example. Yeah, so the way that we orient ourselves in space and which dimensions we think are primary really differs from culture to culture. So, for example, we've been talking a lot about left and right and you organize time from left to right, for example. But there's some languages that,
Starting point is 00:29:19 don't really use words like left and right. And instead, they do everything in some kind of absolute space. So cardinal directions would be an example, north, southeast, west. And I had a chance to work in a culture like this in Australia. Actually, about a third of the world's languages relies strongly on cardinal directions of some sort. So as opposed to saying forward, backward, left, right, they say north, southeast, west. Not necessarily north-southeast, west. The set of directions could be different. So it could be if you live on a hill, your directions are uphill, downhill across the hill. Or it could be that your directions are set by the river that you live by, or they're just, or they're set by the locations of the mouth and the source of the river,
Starting point is 00:30:02 not the flow of the river. Right. Things are important to your life. Yeah. Prevailing winds. Or they could just be an arbitrary set of directions that roughly divide things into quadrants but aren't aligned with. north, southeast, and west. So there are lots of possible systems. On islands, there's often a concentric system where there's a direction that's seawward and a direction that's like inland, like volcano word is a direction. And sometimes you have mixed systems. Like you might have a seaward inland dimension, but also an east-west dimension. And so people use both east-west. That's very common because of the sun, of course. And then you also have this more concentric system that's about
Starting point is 00:30:46 how far away you are from the sea. And that does seem like that linguistic convention would have an effect on what you understand. I mean, right now I have no idea what direction north is, right? But if I grew up in that culture, I would probably keep track of it all the time. Yeah, in fact, that's what we find. People who speak languages that require you to use cardinal directions,
Starting point is 00:31:06 for example, to keep track of which way they're facing because you have to speak the language. So in the community I worked in literally to say hello, you say, which way are you going? And the answer should be something like north-northwest in the far distance about you. Right? So you literally can't get past hello. And the social pressure, of course, to learn is very, very strong. You just get treated like you're a nink of poop if you don't. And even very small kids there are very well-oriented. So, you know, I could sit down with a four-year-old and say, hey, can you draw me north, south, east, and west? And they would just make these two effortless
Starting point is 00:31:44 lines in the sand and I would get my compass out and be blown away. Exactly right. You know, this tiny little human. You're like, how did you do that? What about people whose brains are not completely functional? Does that affect how they perceive these things? You know, we had a chance to test this looking at patients who've had strokes. We looked at patients with strokes in the right parietal lobe.
Starting point is 00:32:07 This is a common place to have a stroke because there's a lot of vascular there, so it's common for things to go wrong. and when you have a stroke there, one consequence often is that you start neglecting things that are on the left side of space, on the other side of space. So these patients might only eat. Because your right brain controls, yeah. Yeah. Yes. So these patients might only eat food on the right side of their plate or they might only put makeup on the right side of their face or might only shave the right side of their face.
Starting point is 00:32:37 They might only read words on the right side of a page. They just don't, they seem to be unaware of. what's happening on the left. And so we wonder, does this also extend to time? So how concretely is time really on the left or the right? I mean, sorry, can I just ask like for the plate thing? Is they part of their brain that knows that they're only seeing the right hand side and they can just rotate their plate and there's more food there? If you rotate it for them, they'll be happy and they'll eat the other side. They won't. If they will eat food on the right side of the plate and complain that they're still hungry. So there's something
Starting point is 00:33:12 else going wrong in their brain, so they can't... They're just not able to bring into consciousness things that are on the left side. Which is amazing, but yeah, it does undermine the idea that there's a separate unified consciousness. Yeah, so obviously your brain is aware of lots of things that it's not telling you about. It's kind of like on a need-to-know basis with your conscious experience. So if you really stress test this, like if you have something on fire on the left side or you show a salacious image on the left side.
Starting point is 00:33:45 People might blush. Well, they might blush, but they might not know why they're blushing. Interesting. And so... Okay, anyway, time. So, yeah, so we told people, these were patients who read from left to right. They were French-speaking patients in Switzerland. We told them about a guy, David, who liked doing some things 10 years ago in the past,
Starting point is 00:34:09 and will like doing different things 10 years from now. These are trivial things. Like 10 years ago, he liked cherries, but 10 years from now, he liked strawberries. And these are just facts that they had to remember. And what we found was when we tested their memory, they were much more likely to remember things that were associated with the future, the right side of time. And if they remembered things from the past,
Starting point is 00:34:32 they misattributed them to the future. So if they remembered something that we said happened 10 years ago, if they recognized it, they mistakenly thought that it had to be in the future. So they kind of squeezed everything in their mental timeline into the part that they could attend to, which is in the right part of their mental timeline. So that to me shows just how deeply ingrained these cultural patterns are. So culturally, we've assigned the left side of time to be the past and the right side of time to be the future. It's a completely arbitrary convention.
Starting point is 00:35:05 It's an arbitrary cultural convention. And yet by the time we're grown in. adults, if you destroy the part of the brain that represents the left side of space, you also knock out that culturally associated part of time. So it's somehow encoded in the physical brain. It is, yeah. In ways that we're learning. Well, there's no other option than for things to be encoded in the physical brain.
Starting point is 00:35:27 We don't have any other hypotheses. That's true. Fair enough. But you can see it. Yeah. You can see it. Yeah. I mean, maybe this is a digression, but I want to hear more about what this fieldwork is like.
Starting point is 00:35:38 Like, how do you find this tribe with this language? How do you visit them? Are they presumably a small tribe? It's the particularly linguistic community is about 200 people. The entire community is about 500 people, and there are speakers of five different languages that live together in this community. Isolated? Yeah, they're pretty isolated. They live on the west coast of Cape York, in this town called Pomparao.
Starting point is 00:36:07 It was set up as a mission. in Australia. But to answer your question, how do you kind of start on this kind of work? Well, you always start with a question or an interesting observation that catches you and you say,
Starting point is 00:36:20 I wonder. And then, and so I ended up doing this work with a wonderful collaborator, Alice Gaby, who was the first to describe the grammar of the Cukthair language that was spoken here. So she wrote the grammar
Starting point is 00:36:35 for the language as her dissertation, and she spent a lot of time in the community. And I got connected with Alice because I had been bothering one of her advisors for years about, hey, you're working with people who speak these languages that have this cool way of thinking about space. How did they think about time? Have you noticed anything?
Starting point is 00:36:55 Have you noticed anything? Every time I would go to visit his lab, I would constantly bug him. And after years, he said, oh, you know what? Alice noticed something. You should go talk to Alice. The progress of science. That's how it works. Yeah.
Starting point is 00:37:06 But I then recently was going through some of my college notebooks, and I'm a very disorganized note taker, and so my notebook contains some, you know, notes on Husserl, and then someone's phone number, a recipe for lamb stew. And then a note that said, get in touch with such and such a person and find out how speakers of this language organize time. It would be cool if it's in cardinal directions. And I'd have zero memory of right. writing that note. And then, of course, you know, 20 years later you get to do the study.
Starting point is 00:37:42 But it was one of these things where you just get interested in a question and you keep asking people who you think might know. And eventually an opportunity opens up and the gift of a wonderful collaborator. And then you get to get to find out the answer to the question that apparently had wanted to know for a bunch longer that I remember. Did you have to learn the language? No, Alice was my contact. on the language front. I mean, how many languages do you have to know to do your job? Is that a fair question?
Starting point is 00:38:13 It's really useful to know about languages, and it's really useful to have wonderful collaborators that you trust who are experts. It's always best to have someone who is more expert than you in the language. You're not going to be super fluent in all thousands languages. Okay, so what's the answer? Does thinking of space as cardinal directions affect how you talk about time? it affects how people organize time in their mind so when we asked people in this community to for example organize cards that show a person aging you know from young to old instead of organizing them from left to right they organize them from east to west so if they're sitting facing south they made them go from left to right but if they're sitting facing north they made them go from right to left if they're sitting facing east they made them go coming towards their body
Starting point is 00:39:02 And for me, that was just the most amazing thing to see with my own eyes. Because it's one thing when you make a prediction theoretically, you say, well, here's a bold claim. If I think that the way people think about time depends on space and you build one out of the other, then they should do this thing. But it's a thing you've never seen anyone do. No, no, that's the scary part. And so, you know, millions and millions of people have been given a task to organize cards. and you've never seen someone do it that way, right? And so you sit someone down and you say, let's see what happens.
Starting point is 00:39:36 And then you see it happen before your eyes. It's the coolest thing to see. And in a sense, it's very weird to us to think that I need to keep track of north, south, east, west, when I put some cards on the floor. But maybe it's a little bit less egocentric, right? Like it's not like time revolves around you. It's more stuck inherent in the earth somehow. Yeah. There's definitely one way of thinking about that pattern of data I just described that says,
Starting point is 00:40:04 oh, how weird they make time go in different directions depending on which way they're facing. But actually, the other way of describing it is, oh, no, they're doing it in a different coordinate frame. So actually, time always goes in the same direction in the coordinate frame that's important to them, right? So they're using a qualitatively different set of coordinates. And for them, it's the relevant coordinates are east to west, and time always goes from east to west. And it's me who is making the dimension of time. Chase me around every time I turn my body. Extremely egocentric of me. And is it, this is, again, you know, maybe future research,
Starting point is 00:40:38 but are there other correlations? So, you know, this is a whole other category. I think about both space and time a little bit differently. Can we match that up to other ways, they think? There are lots of things that we would want to explore. It's definitely too early to make other conclusions. But people have found lots of other cool patterns of how time goes that isn't left to right or right to left, right?
Starting point is 00:41:00 So, for example, my colleague here at UCSD, Rafael Nunez, and Kenzie Cooper Rider did work in a community in Papua New Guinea, the Yupno people. And what's cool about the Yupno is, for them, time doesn't go in a straight line. So it rolls into the village at one angle, and then it hits the village, it takes a turn and rolls out at a different angle.
Starting point is 00:41:18 Okay, that's just crazy, though. I'm sorry. This is up too far. This is why I'm telling you, right? Yeah. So because we have traditionally had all these assumptions about how time must go. Right. So it used to be, well, it has to go from left to right,
Starting point is 00:41:32 and maybe it has something to do with handedness because we're right-handed, so people would have that kind of explanation. Or it has to go so that the future is in front and the past is behind because we walk forwards mostly and not backwards, and we have eyes in the front of our heads and that in back. That turns out not to be true either, right? For some people, the past is in front. The future is behind.
Starting point is 00:41:50 It has to be in a straight line. And of course, how else could it be? But it doesn't have to be in a straight line if there are places around you that are important to you. So in this case, the mouth and the source of the Yubna River are really important locations. And there's no way to make a straight line between them and hit the village. So time takes a detour to the village, stops in the village and then takes a turn and goes in. What does that mean operationally? Like when you say, when you're referring to something a week ago, it's in one direction and a year goes in a different direction?
Starting point is 00:42:20 Yeah. Yeah. So if you're looking at the way people gesture as they're talking about events in the past and the future, you'll see them gesturing along this bent timeline. Okay. Right. More things in heaven and earth, I guess. Yeah. That's very cool. But I think all of this is a testament to the incredible ingenuity of the human mind, right, that we've invented not one way of thinking about time, but so many thousands of ways of thinking about time. And probably we haven't invented most of the ones that are still possible. At least all the ones you mentioned are one-dimensional, right? I would be more troubled if people were thinking of time is two-dimensional,
Starting point is 00:42:58 because I don't know how to make sense of that. Well, so the example we started with when I say next Wednesday's meeting has been moved forward two days, what day is the meeting? You tell me if you think it's more than one-dimensional. So if people are giving me different answers depending on how they're thinking, whether they're thinking about themselves moving or time moving. Now, if time is one-dimensional, and it's like a, one-dimensional unidirectional entity,
Starting point is 00:43:24 then it should not matter if I'm moving towards the meeting or the meeting is moving towards me, right? Those are the same thing. In space, it matters because there's a fixed ground against which we're moving. So if I'm moving towards you, that's different than you moving towards me because there are other things that are staying stationary relative to us.
Starting point is 00:43:43 But that requires more dimensionality. It's not, right? Oh, I don't know. I don't think so. I think that, I mean, number one, of course, part of what Einstein figured out was that the ground, it's perfectly okay to think of the ground is moving if you're on a train or something like that, right? So that you can choose your reference frame as you want. But even if space were only one-dimensional, there could still be ground, and there could still be a reference frame with respect to which you were at rest, I think. the thing that
Starting point is 00:44:14 having space be more than one-dimensional enables is that you can go in circles whereas in time you can't go in circles you only go in one direction well a lot of cultures do go in circles so they think so they linguistically talk about it that way
Starting point is 00:44:29 but certainly people draw diagrams of time that are circular or at least imply a spiral and we have a lot of cycles built into our systems right so we have the weak cycle where things repeat and the months of the year repeat and so on. And in some cultures, those circles are a lot more prominent as a way of thinking than in others. Yeah, no, I mean, the standard paradigmatic clock is a pendulum going back and forth,
Starting point is 00:44:52 repeating itself over and over again. Yeah, no, no, there are definitely cycles in nature. But in general, I have described a lot of things that sound linear. And part of that might be an artifact of the measurement, right? So when you're measuring how people think about time, you give them some cards to lay out, they give you a line. Well, when you're looking at a line, it's possible that what you're looking at is a small part of a really big circle. Oh, yes, very much. Right, and you're just not making a measurement of the whole system. So if it was possible for us to create a task that measured a lot more of the space,
Starting point is 00:45:26 we wouldn't just see a bunch of little lines. We would see a lot of lines that connect in, small lines that connect into a circle or a rumbus or some other thing. And we're talking about weeks and months and years, but presumably all these different cultures have their cosmologies or their eschatologies or whatever. And so they might have guesses or hypotheses about what happens on much, much, much longer time scales that are different from culture to culture, right? Hindus have a cyclic sort of cosmology that is like way longer than most Western cosmologies as far as well.
Starting point is 00:46:00 Yeah, definitely people's relationship to deep, deep time, whether it's the past or the future, is really different from place to place. I'll give you two examples. One is just how many steps of causation do you think are relevant to a current outcome. So if I set up a pool table and I say, here's the location of all the balls, I'm going to make a shot. How important is this shot for all of the next shots that I'm going to make? So does it make an impact on the second one, on the third one, and the fourth one? And if you have students in different countries this, everyone will say the next shot, of course,
Starting point is 00:46:47 is being affected by the outcome of this first one. But then people start to fall off. And American students fall off after basically like the second or third shot. So by the time you make it to the fourth or fifth shot, they say, yeah, that first shot is no longer exerting a lot of causal force. But students in Korea, for example, will say even in the sixth and the seventh shot, they still think it's exerting a lot of causal force. And going the same way in the opposite direction in the past, you say, well, here's the location of the balls that's ended up now. How important was the shot before that, the shot before that, the shot before that. And again, American students have a much narrower slice of time, slice of causal links that they allow to be relevant, whereas other people have a deeper causal, have a deeper causal,
Starting point is 00:47:32 chain that they allow to be built. It's interesting because as a physicist, I can justify either one of those approaches, right? I mean, clearly the shot that you do right now in principle affects all the subsequent shots, right? But maybe in practice, there's enough unpredictability that it doesn't affect it in a noticeable way. So it depends on what you care about, right? Yeah. So you said also about time being one-dimensional, as opposed to two-dimensional in cycles.
Starting point is 00:47:59 And I wanted to tell you about the Balinese calendar. because it's such a cool example. People describe Bolognese time as dense time. So instead of one seven-day week, Bolognese calendar has ten concurrently cycling weeks. There's a one-day week, a two-day week, a three-day week, a four-day week of five-day. And so all of these have their own rhythms, right? And different things happen on different size weeks. So, for example, the fish market might be on the third and fifth day of a five-day week.
Starting point is 00:48:29 The vegetable market might be on the fifth and seventh day of a five-day week. eight-day week. And so you can imagine the kind of complex rhythm that this creates in your kind of understanding of time. And also there are three concurrent years happening. So there's like the Gregorian calendar, there's the lunar calendar, there's a solar calendar, and all of these are also happening at the same time. So if you have a chance to look at a Balinese calendar and see all of the markings and designations and colors and additional markers that are required to keep track of all of these. It's really phenomenal.
Starting point is 00:49:04 How do they do this before they had laptops and iPads and things like that? Like, I can't keep track of my appointments next week. I think it's, I think that's a cultural practice that you see also, for example, in music in Bali. So if you think about the gamelan and all of the complex cycles of rhythm that happen on the gamelan, where if you're playing one part of the gamelan, you might be, you know, on a, I don't know, 87 count. Okay. You hit on the 31 and the 47. Right.
Starting point is 00:49:33 And someone else is on a much different, a much different set of times. And so I think that idea of embedded cycles that are recurring, but are of different lengths and things kind of falling into that rhythm that's ever existing is just a very important part of a culture that permeates lots of things. And that does sound like something that would, I would expect, clearly have an impact on one's cost. cognitive capacities, right?
Starting point is 00:50:01 I bet the typical Bologna's person is better at juggling all these rhythms than I ever would be. They're trained to do it, right? And they expect it and so forth. Well, you said then you ever would be, well, I would disagree with that. I think if you... I'm old and stuck now. I mean, if I started young, then sure, but now, I don't know. You can learn lots of things.
Starting point is 00:50:18 This idea that you can't learn things later in life is really silly. I mean, think about all the things, complex things you've learned since you were six years old. It's true. I think we have this somewhat magical idea that, you know, children are the sponges for information, and they can acquire these really complex things. And sure, the children are sponges and they learn lots of things that's very impressive. But adults do pretty well. We come up with some pretty clever stuff.
Starting point is 00:50:45 I'm on team adults. Yeah. No, actually, I'm very glad that you called me out on that because I am a big believer that you can and should try to learn things, even in your dotage, such as I am. But, okay, still, I do think that the practice, does affect your capabilities. You have this other... Oh, absolutely. Cultural practice,
Starting point is 00:51:04 especially something that's built into your language, it's something you're required to do, you have to do it just in order to be a normal member of your society. You're going to do it. And so it's a daily practice. And if there's anything we know from cognitive psychologists,
Starting point is 00:51:16 the things you practice, you get better at. Yeah. Let me pause for a moment to talk about LinkedIn jobs. You know that when it comes to hiring people, decisions that you make can be the most important. decisions for a company, whether it's a mature one or one that is just starting up.
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Starting point is 00:52:16 LinkedIn.com slash Mindscape. Again, that's LinkedIn.com slash mindscape to get $50 off your first job post. There are, of course, terms and conditions that apply. Okay. I mean, I, do want to think that we can keep learning things, no matter how old we get, maybe, but I sometimes wonder whether I'm just whistling Dixie. Like, what about learning languages? Is it true that we were better at that when we were younger? It's definitely easier to learn languages when you're younger than when you're older. It gets progressively harder.
Starting point is 00:52:48 But people often use that as an excuse to not learn another language. I often have people tell me, oh, it's too late for me. I'll never, you know, if I start learning French now, I'll never be perfect at it. I'll never be native-like. And I always wonder, like, why do you want to be perfect? Are you trying to be an international spy? What's the, like, because that's the only reason why you'd need to be, pass for a native speaker.
Starting point is 00:53:11 It's actually really fun and useful to speak a language. Even if it's not perfect, you could speak it pretty well. Do you sort of discipline yourself to learn more languages occasionally? This is part of your... I'm trying to learn Spanish now. Spanish, okay, good. I think it's super fun. It's a fun puzzle where you can actually go in and have an interoperable.
Starting point is 00:53:27 with someone, it feels like you've solved, you've like unlocked some kind of mystery. Like you said some words and they said some words back and you got the taco that you wanted. And you're like, achievement unlocked. It worked. I actually think this more broadly about academics. I think that, you know, there's this idea that we're creative when we're young and we become less creative when we're older. And maybe there's some of that that is true, but there's an equally good hypothesis that
Starting point is 00:53:52 says when we're young, we don't know anything. So we have to work hard to learn and become an expert in something. And when we're older, like, we're already an expert in something. So we can just keep doing that thing over and over again. And that makes us less creative, completely irrespective of our cognitive capacities. Yeah. So we definitely get set in habits and we get set in patterns. But once you recognize that about yourself, you can do something consciously about that.
Starting point is 00:54:19 And you can go and learn new things. You can go and have new experiences. This is one of the reasons that people try. travel, for example, you end up in a different context. And those times that you're traveling, that you're away, they expand in memory. So you might have a week of vacation. And that week of vacation takes up so much more space in your memory of the year than the rest of the year. Because you have new experiences in a different context.
Starting point is 00:54:44 They aren't just automatic repetitions of your normal routine. And so whether it's learning languages or having new experiences, jostling, yourself to do something new creates that opportunity for creativity. So as a professional cognitive scientist, would you sign on to the idea that continually surprising yourself and trying new things keeps you young in terms of your brain function? There are definitely lots of studies that show that. There's a use-it-lose-it feature. It's true with languages, so people who acquire a second language are somewhat protected from Alzheimer's and onset of dementia late in life.
Starting point is 00:55:26 But that's also true for any active hobby that people keep up, right? So whether it's digital photography or something else that requires you to use your brain in new creative ways, that will help you stay active. And I always tell people that the right time to learn another language is now. It does get harder as you get older, but unless you have a time machine, you can go back to when you are younger. your only option is now and now is better than any other time that's later. I need to get some language learning course to advertise in the podcast.
Starting point is 00:55:59 I feel good about that. That's a great idea. And it's not just time. You have another example which speaks to this point about colors, about the light blue and dark blue. Yeah, so it's a very simple example. Again, when language makes a distinction between two things, requires you to make a distinction between two things, you get a lot of practice distinguishing them. So in Russian, there isn't.
Starting point is 00:56:21 a single word that covers the entire spectrum of blues in English. So there's not a word that covers everything from the lightest blues to the darkest blues. Instead, there is a separate word for light blue, Gullaboi, and another word for dark blue, which is Sini. And so Russian speakers have to call different shades of blue by these two different names. And when you test their ability to distinguish blues that either fall in one Russian category or in two different Russian categories, they're faster to tell the difference between what they would call Gullaboy and what they would call Sini, whereas for English speakers, they're all just blue. So we can tell that they're different, but it takes us longer to recognize the difference
Starting point is 00:57:01 than it would are Russian. Yeah. In general, this is true across languages, you can test English speakers across the blue-green distinction and things that you would call blue as opposed to green, colors that fall on either side of that boundary. You will be faster to tell the difference between them, two different blues or two different greens that you would call by the same name. And there's nothing spooky about that.
Starting point is 00:57:21 It's practice. That's what they're used to doing. It's practice. Yeah. Yeah, I mean, it's, so now we're bumping up against the big question, which is how we talk versus what is real. Does language bring reality into existence, or is it a simple representation of reality?
Starting point is 00:57:37 Like, I think even men and women, even in the United States, label colors slightly differently, right? And certainly, the evidence you just said, Russians and English speakers label colors slightly differently. Does that mean that we see differently? Are we perceiving the world differently? We're going to go way beyond colors to much more deep and important concepts there. So, of course, all we can measure in experiments is how people behave, right?
Starting point is 00:58:03 So I can say, does it take you longer to make this distinction or not? Are you more likely to confuse these two colors in memory? Are you more likely to make an error when I'm asking you to make a distinction? what I can't tell you from any of those results is what your experience of that color is. So if your question is, do Russian speakers see those colors as differently, experience them somehow differently? I can't tell you what anyone sees any eyes. That's a problem.
Starting point is 00:58:33 It's a problem with consciousness and all these questions. Perception is a private experience. So ultimately, that's beyond our tools of measurement. So all we can do is say how efficiently can you make this judgment. how likely are you be correct if we stress the system, things like that. And from that, we can say, well, the brain seems to have an easier time making this distinction than that. We can also make measurements directly from the brain and say, oh, the brain of a Russian speaker responds if you shift the colors from light blue to dark blue.
Starting point is 00:59:08 You'll get surprise response. This is like an MRI machine or something? How do you poke into the brain? I'm describing EEG results where you're measuring a very fast response that just kind of says something has changed, right? So it's like a surprise marker. And if I show you a series of blues, when I've crossed the boundary from light blue to dark blue, the brain of a Russian speaker, a Greek speaker, for example, will give that surprise response. It says, oh, we've shifted category. Something new is happening, whereas the same series of colors will not give that response in an English speaker's brain because nothing.
Starting point is 00:59:44 the category isn't changing, right? So again, we can tell that the brain is treating these things differently, but I can't tell you that people see things, and anything about how anyone sees anything really. What was it, was it the Sefer-Warf hypothesis? I'm getting it right? Sepeer-Warf, yeah. Sapir?
Starting point is 00:59:59 Sapir. That basically said that our language controls what we see. How would you phrase the hypothesis? There are many different versions of the hypothesis. So Benjamin Lee Wharf died young, and a lot of his writings were published posthumously. So imagine all your notes that you haven't. Oh, no.
Starting point is 01:00:18 They're going to be burned. But in his writings, he says lots of different things. A very strong hypothesis might be that language controls thought, and you could never have thoughts that are outside of your language. Another version might be that language is one of the contributors to how we come to see the world, and it might be a stronger influence in some domains where there's less information from the world.
Starting point is 01:00:46 It might be a less strong influence in others. But in general, there is this interesting idea out there that says maybe language is a straight jacket for thought. Maybe we can't think outside of the bounds of our language. And I think this is a particularly odd idea because you can always learn new ways of talking. Right. And also to invent any feature
Starting point is 01:01:11 of a language, you have to have at least partially the thought first. And so it seems to me that language can't be truly a straight jacket for thought. But language can certainly encourage patterns and entrench us into ways of thinking so that we don't even consider other options. I mean, I always, you know, thought of what about an instrumental piece of music? I can think at that. It's in my reign, but it's not in the form of language. So like the most naive reading of that hypothesis can't be quite right. Yeah. So Wittgenstein makes this wonderful example,
Starting point is 01:01:45 just to show that some things are very expressible in language and others not. So he says, if I ask you, what's the height of Mount Kilimanjaro? If you know the answer, you can easily express it in language. But if I ask you, what does a clarinet sound like? It's going to be really hard, right? If you don't already know what a clarinet sounds like, I'm not going to be able to say very many useful things that will really help you. And so there are definitely a lot of, there's a lot of mental activity.
Starting point is 01:02:11 that exists outside of the purview of language or is not as effable as other things. And my impression is that the Superior Warf Hypothesis was popular and then faded and maybe is getting a little bit of comeback? It was popular when Wharf was writing. People were... So what was that? He was writing in the 30s and 40s, but a lot of his writings were then published after his death. There was a collection of them published in the 50s. But there wasn't really any research about it, right? So it's one thing for the idea to be popular, right? It's another thing to
Starting point is 01:02:52 actually go and do experiments. And one of the reasons is that all of the people doing work in communities that were not just, you know, colleges in the U.S. with English speakers, you know, English speaking sophomores who are our subjects normally. Our favorite test subjects, yes. all of those people weren't using the tools of cognitive psychology or psychology in general. They were linguists or anthropologists. They were doing descriptive work. And so when they would come back from their field sites and say, well, I worked in this community and they do this, psychologists would treat that as like interesting stories and travel journals.
Starting point is 01:03:27 They would be like, oh, well, that's lovely that you had that trip. A little color. You had that experience, but it's not science. but at the same time, psychologists were completely shielded from being able to discover any of these fascinating differences because they never left their labs. And the only people they ever tested were English-speaking sophomores. And so if that's the only people you over-test, you never see evidence of diversity. So you've conveniently protected yourself from discovering any interesting phenomena, right? I mean, is there a time when that began to shift?
Starting point is 01:04:00 In the mid-1990s, finally, there's some... there started to be a marriage where inspiration from field linguistics and linguistic anthropology started filtering into psychology, and then psychologists started collaborating with linguists and anthropologists to design experiments. And it's a relationship of building trust across those disciplines because different fields have different ways of knowing and different things they trust to be true. And definitely as a, you know, I'm trained as an experimentalist. So I believe data, I want things to come from a controlled experiment and if there's not two columns of numbers I can compare. No, it's not, nothing is true, right? But at the same time, I've also come to see how much
Starting point is 01:04:44 of our interpretation of the data has to rely on a rich understanding of the context in which you collected the data. So if I go to a community for a week and do an experiment, five percent of what I learn is the data that I got in the experiment and 95 percent of what I learn is just being there and seeing how people interact and how whatever practice I'm trying to measure in this little toy experiment actually lives in the community and how it performs. And that gives me so much more comfort in interpreting the data and making sure that I'm not just grossly misinterpreting what the two columns of numbers are saying. Does that pose a challenge for the practice of science and that it's harder to objectively communicate what you've learned in a journal article than it is
Starting point is 01:05:26 for some quantitative data? Well, I'm, you know, I'm starting to, you know, I'm starting. and experimentalist, so I'm always, I always am at the end of the day doing a controlled experiment and doing statistics on the data. So that's true. But I think it is a really interesting challenge for all of the behavioral sciences and all of the social sciences to think who our subjects of study are, right? So when we're talking about humans. There are people. As a physicist, I can avoid this problem, but you can't. Yeah. When we're talking about humans, usually people will just test American undergrads and say we've discovered how humans do something. They're a very strange kind of human. That's a very, very unusual kind of human.
Starting point is 01:06:12 And so how do you actually create a rich understanding of the human mind in all of the different contexts that it exists and the incredible ingenuity and flexibility that you see around the world in all of these different contexts? That to me is the real cool stuff that human minds do. And the more we constrain the set of people that we study, the less we're actually allowing ourselves to understand the real meat of what it is to be human and what it is to have this cool human brain that can do all these things and is so flexible. And even if language does not absolutely restrict what we can understand, so it does seem that the pendulum is swinging towards thinking that it affects how we understand things. And maybe in a profound way, maybe not just, you know,
Starting point is 01:06:58 colors and directions. It definitely creates habits of thought. It lays down patterns that are easy to follow, and then you follow those patterns. And in some cases, it creates foundations for whole realms of thought. So the domain of number is a good example of that. Of course, in English, we have numbers. One, two, three, four, five. Everyone learns those numbers as a kid.
Starting point is 01:07:21 Did we always have those? I mean, in the European, did we, I guess zero came late? Zero is very late Yeah well the decimal positional system that we use now for Representing numbers I think comes to Europe in the 1700s with Fibonacci Right so he takes it from the Arab world
Starting point is 01:07:37 Which took it from India The idea of Counting numbers were always there in Indo-European language Always is a long time We don't know about always because You know language doesn't leave a physical trace in the fossil record So when you go beyond
Starting point is 01:07:55 the written record, which is very, very short for the human race, we actually can only make inferences about what might have been there. So it's extremely unlikely that always is true. I was exaggerating again. You caught me. Very good. But there are lots of languages that don't have exact number words or have words that are just one, two, three, few, and many. Some languages don't use a base 10 system for their number system. They use base 6 or base 8 or base 2. or base 87. Yeah, the 87 is weird, but okay, you know, go nuts. 81 is true.
Starting point is 01:08:32 I definitely know of a language. I think 120 was something. The Babylonians had a lot of things that were based on 60s and 20s. So 120 you get from units of 20s. That was a common thing. In general, body parts are good, so 5, 10, 20 are common. But then some people use a different way of thinking about body parts. So, for example, they might use links on your fingers, and so you get 12.
Starting point is 01:09:00 Some might use knuckles, in which case you get eight. Okay. And some people, for example, there's a group in Papua New Guinea that has a base 27 that just starts with the fingers on one hand and goes across the top of your body, including parts of your face and your head and goes on the other side. And then when you need to go above 27, you just go in the other direction. and so you say, you know, a second elbow, second time back. Okay, okay.
Starting point is 01:09:27 And the body part terms are actually the names of the numbers. So like if you want eight potatoes, that's elbow potatoes. So languages have all these different systems for numbers, and some don't have exact numbers at all. And that's a case where, as you said, zero came late in human civilization. So there are millions of humans running around, trying to think about things.
Starting point is 01:09:49 and it takes a very special one or group of humans to come up with this very useful innovation of zero that makes it a really good number system that you can then, you know, like better than the Roman numerals that Europeans had before, certainly for mental calculation, right? But we all have, we all now completely take it for granted. So you and I know the number system.
Starting point is 01:10:12 It's impossible to imagine not knowing it. It's impossible to imagine it ever not being in your language. But someone has to be. to invent it and it's not something that's a project for a Tuesday. No, no, no, no. It took a really long time for that to come about and it didn't happen in very many places in the world. And so, but now we have it.
Starting point is 01:10:33 And so we're like, we're such ungrateful punks. We take it for granted. We're like, of course, it always existed. I would have thought of it even if someone didn't. But it's all this cognitive labor of all these people that is just built into language and now five-year-olds have the cognitive skills that used to be only available to a very few adepts, even just 500 years ago. Because of that legacy of the built-in structure of the language they get to learn.
Starting point is 01:10:59 Now it's part of the language and everyone is trained on it from early on and you don't even remember learning it and I'm completely ungrateful for it. But even notions like causality, influence, and you mentioned the billiard balls, blame and intentionality, these are all built into how we talk also. Yeah, whenever something happens, you have to construe it in some way, right? So there is a physical event that occurs, but then you also have to think about, did it just happen? Did someone do it?
Starting point is 01:11:27 Whose fault is it, right? Is it an accident? Yeah, and there's so many different ways that language allows you to construe or describe any given event. So, for example, let me give you a famous accident, when Dick Cheney went out hunting with his buddy Harry Whittington and shot him, accidentally in the face. In the face. Yeah.
Starting point is 01:11:51 So you could say Cheney shot Wittington. You could say Wittington got shot by Cheney. You could just say Wittington got shot, leave Cheney out of it altogether. You could focus on the manner. So you could say Wittington got peppered pretty good. That was a headline from a Texas newspaper. Cheney himself, when he was apologizing, said, ultimately, I'm the guy that pulled the trigger that fired the round that hit Harry. So I'm the guy that pulled the trigger.
Starting point is 01:12:25 So he takes this, you know, it doesn't take a very long time to shoot your friend in the face. It's a split second physical event. You think it's pretty simple. But he takes a split second event and breaks it up into a long chain. And he just happens to be on one end of that causal chain. Bush actually did one better. He said something like, he heard a bird flush and he turned and pulled the trigger and saw his friend get wounded. In that description, Cheney transforms from agent to mere witness by the end of the sentence. This is a masterful excultation, right? So why didn't you just rent a truck and move yourself?
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Starting point is 01:13:30 They're funny examples of linguistic wiggling, but we have to do this all the time. Whenever you're choosing a verb, you're choosing how much time you're going to compress into an event. So I could say, we built Rome. We cured polio. Well, a whole lot of things had to happen. It's a lot of events.
Starting point is 01:13:48 There's a lot of time, right, for any of those things. So I could use one verb for those extremely complex, longstanding processes. Or I could use four verbs to say, I shot my friend in the face. So you're always taking a perspective when you're choosing a verb. And you're also taking a perspective, depending on whether you say, I broke the vase or the vase broke, or it's so happened to me that the vase broke. You're shifting blame. You're shifting responsibility. languages choose differently how to describe events.
Starting point is 01:14:17 So in English, for example, we are not that careful about distinguishing accidents from intentional actions. So you can say things like, I broke my arm, where, you know, in lots of other languages, you wouldn't say that unless you were a lunatic looking to go break your arm and you succeeded, right? You would say something like my arm got broken. It so happened to me that my arm broke. But in English, whether it's intentional or accidental, it's common to say, an agentive thing, like he broke the vase, I broke my arm, I lost the library book. If you try to say, I lost the library book in Spanish, people will look at you and say, why would you do that?
Starting point is 01:14:53 What kind of person would do that? So in Spanish, it would be different constructions for, I lost the library book intentionally, I lost it by accident. Well, yeah, I mean, if you're a weird person who intentionally loses a book. But you would express it as something like the book got lost or the book lost itself to me or something like that, right? because you didn't intend to do it. But in the case where, say, you broke a vase by accident,
Starting point is 01:15:19 in English you would still say, I broke it. That's normal. And if you don't say, I broke it, if you say something like it broke, people think it's evasive, right? Whereas in lots of languages, you would have to use a different construction. Well, writers are taught not to use the passive voice because it is less active. It's weaker, right?
Starting point is 01:15:37 Yeah, this is like, agentive non-agentive is a little different for passive. Passive active. But let me give you an example I love. So take Caesar, Romeo, Socrates. Socrates drank the poison. Socrates was forced to drink poison. He knew that he was drinking poison. He had to do it. That was sentenced to death by poison, right? Romeo drank the poison. He meant to drink poison. He was intentionally drinking poison, right? Caesar drank the poison. Caesar drink the poison. poison. Well, Caesar thought he was drinking wine, but his wine was poisoned. So he's intentionally drinking, but unknowingly to him, it's poison. But in English, we can say he drank the poison in each case. Caesar drank the poison, Romeo drank the poison, and Socrates drank the poison. There are languages where those three would require different grammatical constructions, because in those languages, it's important whether someone is doing something knowingly, whether
Starting point is 01:16:36 doing something willfully, whether it's volitional. And so in Devehi, for example, this is a language spoken in the Maldives, you would use three different constructions for those three different guys. Because there are circumstances that are importantly different and have to be marked grammatically differently in those languages. And just like the ability to keep track of numbers and so forth, I presume this does have an effect on how we conceptualize the world a little bit. I mean, this is probably full employment for you and people in your lab to figure out, do we assign praise and blanche? differently if we speak one of these slightly different languages? Are we more willing to let things slide or are we more dodgy? Yeah, well, so let me give you an example just from English. We did this experiment right after the Super Bowl where Janet Jackson and Justin Timberlake
Starting point is 01:17:29 performed together and they had this very famous incident that became the world's first wardrobe malfunction. So the term wardrobe malfunction was born after that incident. And the reason we chose that incident is we wanted something that was saturated for people, that they had seen it many times before, and they knew a lot about it. They'd seen it discuss them in the news, you know, in case people don't remember. In the final dance move, Justin Timberlake reached across Janet Jackson's chest, and then for 9.16th of a second, one of her breasts was partially exposed on national television, and this was extremely scandalous. Decline of the West. Yes. The FCC tried to find CBS $550,000 for the indecency, and people were so outraged, it quickly became
Starting point is 01:18:16 the most Tebowd event of all time. I assume they just had to go back and review it just to make sure they were extremely outraged yet again. So we thought, well, what if you take an event that's even this saturated and you can see it yourself with your own eyes? You can quote unquote go to the tape, right? So we have the sense, you know, we have this expression in English. Let's go to the tape.
Starting point is 01:18:38 as if if you just see it with your own eyes, you'll have direct perception of reality. So we say, okay, well, let's go to the tape for something that you've already seen many times anyway. Could we still change the way people blame and punish the people involved, depending on what grammatical construction we use to describe it? Okay. And so we show people the video. We tell them either he unfastened the snap or the snap unfastened. And then we ask, how much is he to blame?
Starting point is 01:19:06 and how much of the $550,000 should he pay? And not only do people blame Temper Lake more if we say he unfastened the snap, but they also want to charge in 55% more in fines. All right. So the rubber hits the road,
Starting point is 01:19:20 yeah, like they really... Yeah, so even though you have this feeling like, I can see what happened, I can see it with my own eyes, the way that we describe things, the way we tend to describe this, things are the way things are framed for us by other people,
Starting point is 01:19:34 makes a real difference, even when you can see things from the U.S. Yeah. And presumably this pervades everything in ways that we don't even know. I mean, an obvious thing to discuss is gender in language, right? There are ongoing questions about pronouns in English, but other languages are way more gendered than English is. And some are way less gendered.
Starting point is 01:19:54 And some are way less, right. And so, I mean, one question is, when I took German in high school, I was told, sure, there's, you know, there are D and D. and Das, there's these genders, but they had nothing whatsoever to do with, you know, the sex of human beings or anything like that. And I was always a little bit suspicious that there was zero connotation in the brain. Do we know anything about how the existence of those different labels affects how people perceive the different things? Yeah. So this is a coming back to the question you asked earlier about to what extent does language reflect reality or to what extent is it creating its own reality. I think this is a really wonderful example of how language creates something that is completely unrelated to reality.
Starting point is 01:20:35 All right. So we have these grammatical gender systems where every noun is masculine or feminine. So chairs, tables, watering cans, toasters, all are either masculine or feminine. And the amazing thing is speakers of those languages actually take those as meaningful, right? And so if you ask, even young kids, for example, can you assign voices for animated characters? So we're going to have a toaster be the star of this animated film. What voice should it have? Young kids who are learning Spanish or French as their first.
Starting point is 01:21:05 language will pick a boy voice or a girl voice depending on the grammatical gender of the noun. Adults will give you different descriptions of an object like a bridge depending on whether it's masculine or feminine in their language. And if you ask monolinguals of one of these languages, why is this word masculine in your language or why is it feminine? They'll say, well, it reflects some reality about the world. It's completely different in a different language. Exactly. My language has intuited something that is otherwise invisible about this object. You know, the sun is masculine because it is truly masculine, and my language is simply picking up, like, isn't it amazing that French is such a sensitive language is picked up on the true genders of all these inanimate things? Whereas once you find bilinguals who speak two languages that have different gender systems, then they start to see, oh, well, this is just a formal property of the language, and they won't say that.
Starting point is 01:21:58 So I think we believe the structures of our languages a lot more than we should. We often believe that the categories that happen to exist in our language are the structure of reality. But in fact, lots of other categories are possible, and those categories could be collapsed or they could be refined. And all of those are simply models. So when we go back to gender for humans, for example, if you have a language that requires humans to be either male or female in the language, so you have to have he or she and there's no other way, it's easy to come to believe that that's, a necessary distinction and you could not think of a human unless you put them in one of those two categories. But if you speak a language that doesn't actually make that distinction, lots of
Starting point is 01:22:41 languages don't have any gender marking. In that case, it's not a problem. It actually doesn't even occur to you as a thing to worry about. Yeah. I mean, it's only one of a million different ways we could distinguish between people. Right. Yeah. Assigned a pronoun to. Well, I mean, it's interesting that gender is one of the only things that languages mark on pronouns. Some languages will worry about age. So there are a couple of other things that get encoded, but gender is one of the only things that you encode. And you could argue that from an information point of view,
Starting point is 01:23:15 other things might be more useful, like you could encode height or eye color or education level or ability to curl 20 pounds, whatever it is that you could want to know about someone, but we focus on this. But also people often feel very, very, very, attached to whichever specific way their language does gender. So, for example, in English, people might be very adamant that you can't replace he and she
Starting point is 01:23:46 with they because you have to have gendered pronouns and how could you speak a language that doesn't have gender, like what would pronouns even mean? And I always point out that, in fact, almost all pronouns in English are already gender neutral. So I, we, they, you. In fact, only third-person singular pronouns have gender, and I've never heard someone say, you know what, we really need to add more gender to the other pronouns. Some languages do that.
Starting point is 01:24:10 Thai has different gender words for I. Hebrew has different gender words for you. Spanish has different gender words for they plural. Right? So you could advocate for that, but I've just never heard someone say that. People feel very attached to whichever way their language happens to be in the moment. But these things can and do change.
Starting point is 01:24:31 Do you think it is changing? Do you think we're going to switch to a they, third person, universal pronoun? Do you think we should? So singular they has existed in English for a really long time. There are lots of classical uses of it that people don't even hear as strange at all. So if I say, if anybody calls, tell them I'm not home. That's an indeterminate person. I'm not insulted, yes, exactly.
Starting point is 01:24:55 You can find these examples in Shakespeare and Jane Austen. And it's an old use. If you know the gender of the person, then you use he or she, but if you don't use they. Yeah. And so the use of singular they is on their eyes in English. People like it. They use it. And so as it becomes more popular, if people continue to like it and use it, it's going to sound more and more normal.
Starting point is 01:25:16 And the few cases where there is some ambiguity or difficulty in parsing, because you don't know if it's singular or plural, you'll just resolve those with context over time or people will come up with other solutions. whether I would prescribe something is like they should or shouldn't. I think it really depends on what purpose you're trying, what goal you're trying to achieve, right? So a lot of languages are trying to come up with gender-neutral ways of speaking because categorizing people into just two categories misses a lot of people who don't feel like they could cleanly be categorized into those two categories, or sometimes because they feel like it puts too much emphasis on gender
Starting point is 01:26:00 and the first thing that you experience about someone is gender, it allows implicit bias to creep in and so on. But other languages are adding more gender, right? So, for example, in French, the Academia Francaise, that's the body that decides what is and isn't officially part of the French language. They have just approved a whole bunch of new feminine forms for professions. And so the idea is that it creates visibility, for the fact that there are female surgeons
Starting point is 01:26:27 and there are female soldiers and there are female bosses and there are female presidents, right? And so you could say that's a good thing because if there are women doing those jobs and you hear the feminine form, it creates a norm that women do exist in these positions of power.
Starting point is 01:26:46 But at the same time, it has a potential to backfire because for a lot of cases, it doesn't matter. The gender of the person doesn't matter for their job, right? So if I say the statistician delivered the results or something like that, well, if I'm required to mark that it's a female statistician as opposed to a male statistician, does that allow you to start thinking about your gender biases about who can do math and who can't do math?
Starting point is 01:27:15 Is a female statistician a different job than a male statistician in the same way that actress is seen as a less prestigious job than actor or a waitress is seen as a less prestigious job than waiter. The female actors I know in Hollywood like to be called actors. Exactly, because there's more prestige associated with the male term, and there's more pay associated. But I don't know French very well. Are the existing French nouns implicitly male marked, and they're trying to add a female version of it? So, like, I can imagine women not wanting to say, well, I'm a man doing that job either. So it's a sticky situation.
Starting point is 01:27:51 I don't know where to go. The forms, for a lot of jobs, the forms that exist are explicitly masculine forms. And so the Academy Fonsez is just approved the feminine. Almost any profession can be easily feminized in French, the way that French is constructed. It's just that they weren't approved as official things that you could put in a newspaper, for example. So like you turn E N-N-E or something like that. Yes. Or add an E at the end to some, depending on the structure.
Starting point is 01:28:19 Yeah, okay. Well, I don't know. I mean, how, so this is a good place to wrap up. I mean, you're a scientist, you describe what happens in the world, how people talk, how it affects their lives and things like that. But you're also a person. You know, you have some preferences. How much do you either feel or need to resist the urge to be judgy to say, well, it would be better if we spoke this way. Like, you know, you appreciate a lot more than the average person how the way that we use language affects how we think about things.
Starting point is 01:28:51 does it make you want to go, oh, just talk this way? Well, I think of language as a tool, right? And so I think that the way you talk should serve the purposes that you're trying to achieve. And so for me, for example, with respect to gender, I think it would be really great to have gender as something that's optional. So when you want to include it, when it's relevant, you include it. And when you don't want to include it or it's not relevant, you don't include it in the same way that you do for almost any other personal characteristic. So I can talk about you without ever mentioning your height or your eye color or your religion or your profession. And if I want to include that information, it's optional. I can do it. It's not hard. It's not forbidden.
Starting point is 01:29:34 Right. But it's just not part of every single utterance. And so I think that system would be really nice. So if I had to make a new language, I would make a language that makes it possible to not include information when it's, harmful or problematic to include it, and then to include it when it's useful. And in this language, would time move from left to right or right to right? Well, actually, you know, in English, time doesn't move left to right or right to left in the language itself. The language doesn't. Do some languages do it? There is, so every time I say on the radio that English doesn't lay out time from left to right in in metaphor. So we don't say Tuesday is left of Wednesday, for example. I get a phone call from
Starting point is 01:30:15 someone in the military that says, actually, we say that. And it's because in the, the military, they have this calendar, this perpetual calendar that runs from left to right, and everything is scheduled in that left to right stream. And in fact, it's starting to become a linguistic metaphor. So people, when they're shifting schedules, will say, I'm shifting left. And so it is, and some of my collaborators here at UCSD have started testing speakers of military English. And in fact, they do say things that speakers of non-military English. civilian English would find to be odd or ungrammatical. But they have a structured particular way of using left and right.
Starting point is 01:30:57 And they're metaphors that have come from this artifact of this perpetual left-right stream calendar. Well, you already noted that for every rule we try to invent, there's going to be exceptions. And so we keep finding it. Humans keep innovating. That's the wonderful thing about the human mind. We have infinite possibility in there. I agree with that one. All right.
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