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Studying the universe for a living? Sounds like a pretty big job #TEDTalks

The universe started with a bang — but how will it end? With astonishing visuals, cosmologist and TED Fellow Katie Mack takes us to the theoretical end of everything, some trillions of years in the future, in a profound meditation on existence, wonder and the legacy of humanity within the immensity of time and space.

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The universe started with a bang — but how will it end? With astonishing visuals, cosmologist and TED Fellow Katie Mack takes us to the theoretical end of everything, some trillions of years in the future, in a profound meditation on existence, wonder and the legacy of humanity within the immensity of time and space.

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9 Comments

9 Comments

  1. @DY2784

    April 2, 2026 at 4:53 pm

    👋👍

  2. @Lmn_133

    April 2, 2026 at 4:56 pm

    And what’s the importance of that sturdy?!

    • @queenieevergreen

      April 3, 2026 at 5:13 pm

      Sturdy things are generally preferred over their alternative. For, what I hope, are obvious reasons, of course.

  3. @steventaylor6212

    April 2, 2026 at 5:09 pm

    I’ve seen you before. I laughed when some self appointed internet expert was trying to lecture you on astrophysics.😂

  4. @BrianMcInnis87

    April 2, 2026 at 10:41 pm

    Wasn’t aware it was possible to study things other than the universe.

  5. @joshbradstreet1736

    April 2, 2026 at 10:55 pm

    I don’t believe in horoscopes

    • @RandomAxeOfKindness

      April 3, 2026 at 4:13 pm

      They’re real. I’ve seen them. But they’re based on nonsense and wildly inaccurate.

  6. @queenieevergreen

    April 3, 2026 at 5:14 pm

    Such important work.

  7. @BanuSahinn

    April 4, 2026 at 11:33 am

    “I study the universe and then I talk about it” 😎

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People & Blogs

Convenience may make your life easier. But what does it cost? #TEDTalks

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What does it take to stay in control of your life online? AI ethicist Jen Golbeck and TED Fellow Shalini Kantayya discuss how algorithms, data collection and AI shape the choices you make every day. They explore whether it’s possible to use the internet without giving up your privacy, how to push back against big tech and what AI should never be allowed to decide.

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People & Blogs

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Humans aren’t just social — we’re ultrasocial, wired like bees and ants for deep connection. So what happens when smartphones take over childhood, tablets replace textbooks and AI companies infiltrate our kids’ lives? Social psychologist Jonathan Haidt lays out three principles of technoskepticism — and explains why, two years after sounding the alarm in “The…

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Humans aren’t just social — we’re ultrasocial, wired like bees and ants for deep connection. So what happens when smartphones take over childhood, tablets replace textbooks and AI companies infiltrate our kids’ lives? Social psychologist Jonathan Haidt lays out three principles of technoskepticism — and explains why, two years after sounding the alarm in “The Anxious Generation,” he’s more concerned (and hopeful) than ever before.

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“If we can tell a better story about democracy, we can tell a better story about America” #TEDTalks

Our brains are hardwired to crave community and belonging — a tribal instinct that drives politics in the United States, says political strategist Sarah Longwell. She shares what she learned trying to convince people to vote against their political party in a recent election and shows why telling a better story about democracy is key…

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Our brains are hardwired to crave community and belonging — a tribal instinct that drives politics in the United States, says political strategist Sarah Longwell. She shares what she learned trying to convince people to vote against their political party in a recent election and shows why telling a better story about democracy is key to bridging the ideological divide.

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