TED Talks Daily - The thrill of not knowing all the answers | Harini Bhat

Episode Date: November 20, 2025

In a world that prizes certainty, hot takes and instant answers, what happens when we celebrate the power of ... not knowing? Scientist and storyteller Harini Bhat shares how she built a mega-popular YouTube channel where curiosity, not credentials, drives discovery. From ancient brains turned to glass to the origins of life itself, she reminds us that science isn't just for scientists — it's for anyone willing to ask, "Why?" Hosted on Acast. See acast.com/privacy for more information.

You're listening to TED Talks Daily, where we bring you new ideas to spark your curiosity every day. I'm your host, Elise Hugh. In a world that prizes certainty, hot takes, and quick success, what happens when we celebrate the power of not knowing? In this talk, scientist and storyteller Harini Bot shares how she built a popular YouTube channel. Today I learned science, where curiosity and not critical. is what drives discovery. From ancient brains that turn to glass to the origins of life itself,

she reminds us that science isn't just for scientists, it's for all of us willing to ask why and marvel at the answers. Raise your hand if you don't know what this is. That is a human brain turned to glass during the Mount Vesuvius eruption. But it gets weirder. Only this man's brain turned to glass,

not his other organs, leaving scientists baffled about how ash clouds could create the precise temperature conditions to forge glass from living tissue. If you didn't know what this was, then you're exactly where you should be, because this talk is about the power of not knowing. Here's why this matters now more than ever.

We live in a culture that's absolutely obsessed with having the right answer immediately, Social media rewards confident hot takes over curious questions. Everyone is supposed to be an expert in everything all the time. Get something remotely wrong? Canceled. It's exhausting. But I think I found another way.

When I started my channel, today I learned, in two years, over two million people followed. Not for expert opinions or hot takes, but for something simpler. Shared curiosity. which is ironic because I used to be the complete opposite. Before this, I was a recovering no-it-all. Actually, a wannabe nodal who was failing spectacularly at it.

During my doctor at UCSF, I was obsessed with certainty and having the right answer before anyone even asked the question. When COVID hit, I started posting science videos as a creative outlet, but even then I constrain myself. Only post about things you know, Harini, so I stuck rigidly to pharmacy topics, my supposed area of expertise. And let me tell you, it was real, riveting stuff.

Then, I went to Mexico. I was standing in front of the Te-Docan pyramids in the blazing heat when I realized something profound. I had no idea what I was looking at. Who built this? Why here? Where did they go? Instead of feeling embarrassed that I didn't know, I felt alive.

Every carving was a mystery that made my brain tingle in ways of pharmaceutical calculations never did. That night, I couldn't stop researching, not to become an expert, but to feed my curiosity. I made a video about Teteuakan, posted it,

and went to sleep expecting my usual three likes from my parents and my husband. I woke to 40,000 new followers. My first viral video had nothing to do with my eight years of higher education. It was about me, a human being, nerding out over ancient architecture, and then sharing the incredible work of the archaeologists

who spent lifetimes piecing together the mysteries of Teutuakan. Here's what hit me. People weren't following me because I was an expert. They were following me because I was curious. And curiosity is contagious. Because here is the paradox of our time. We have infinite access to information,

but also infinite misinformation. Conspiracy theories get more clicks than peer-viewed studies. Confident nonsense for it's faster than careful science. In that chaos, championing credible voices and making that work accessible, seen to unlock something in people, because after that, my comments exploded with T-I-L.

Today, I learned. In that moment, my mission became clear. Take the most rigorous, mind-blowing research and make it so captivating that someone scrolling at 2 a.m. stops and goes, wait, what? Because science is for everyone, not dumbed down,

but translated with the excitement it deserves. I changed my channel name that night and didn't look back. Here's where my curiosity has taken me. There is a 72-year-old geologist who rewrote the origins of life before GTA6. Juan Manuel Garcia-Ruiz could have retired, but instead, he chose to recreate the famous 1952 primordial soup experiment, the one that showed us how life began on Earth, but with one tiny change.

Instead of using a glass container, like the original, he used Teflon. The result? Nothing. Turns out the glass, specifically the silica, was key. When he added silica back in, he didn't just get amino acids. He got all five DNA building blocks

and protocells. The self-organizing structures that came right before, or actual life. Translation, life on Earth may have started hundreds of millions of years earlier than we thought. This should be breaking the Internet.

But most people will never hear about it. That is the gap I'm trying to bridge, because science isn't just for scientists. When researchers discover how life began or unlock how ancient brains turn to glass, these are ultimately human structures. about curiosity, perseverance, asking brave questions. And everyone deserves to feel that electrifying.

I can't believe we just learned that moment. Like this. For the first time in 2025, we got to witness a human embryo implanting into uterine-like tissue in real time. From this, we learned embryos aggressively burrow, possibly following uterine contractions like GPS signals. This process is actually physically painful.

The countless woman who felt a sharp twinge and wondered if they'd imagined it, they didn't. Science just caught up to what their bodies already knew. We finally answered one of human development's biggest black boxes while validating millions of women's experiences in the process. After doing this for a few years, here's what I've learned. People don't make discoveries because they already know things. They make discoveries because they get obsessed with the stuff they don't know.

And learning isn't linear. It's a beautiful, endless loop. When I shared my Thea Thet de wakan obsession, I was inviting 40,000 other people to be curious with me and showing them science can be as captivating as any Netflix series. See, my doctorate taught me how to read studies and think critically. But my channel taught me

that everyone deserves access to that knowledge. So here's my challenge for you. Find your Teteuakan. Find the thing that lights you up from the inside, not because you understand it, but because you don't. Maybe it's quantum physics. Maybe it's how sourdough starter is basically a pet you can eat.

Whatever makes you feel like that kid that asks why over and over until your parents wanted to scream. When I first started dating my husband, he called me 20 questions. Bring that energy to the table. TLDR stay gloriously unapologetically curious. All right, that's it for me. I got to go research how the real city Atlanta is buried beneath our feet.

Thank you. That was Harini Bot, speaking at TED Next 2025. If you're curious about TED's curation, find out more at TED.com slash curation guidelines. And that's it for today. TED Talks Daily is part of the TED Audio Collective. This talk was fact-checked by the TED Research Team and produced and edited by our team, Martha Estefanos, Oliver Friedman, Brian Green, Lucy Little, and Tonzica, Sung Marnivong.

This episode was mixed by Christopher Faisi Bogan. Additional support from Emma Tobner and Daniela Balezzo. I'm Elise Hu. with a fresh idea for your feed. Thanks for listening.