Theoretical Physicist, Author, Co-founder @WorldSciFest, Professor of Mathematics & Physics, Columbia University
Joined May 2012
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953 Photos and videos
May 31
Conversation with the great Lenny Susskind—quantum mechanics, gravity, black holes. I asked what drives him. A deeper connection to mystery? Yes, he answered, but really: it's fun.
Bottom line: if you love what you do, you've been granted a remarkable gift. youtube.com/watch?v=0Ji1UFPT…
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Apr 17
I suspect AI will one day be sentient, but I’m intrigued that some experts, including Nick Bostrom, don’t rule out that today’s systems may already have a flicker of self-awareness. Maybe it’s time to be a little kinder to ChatGPT and Claude. youtube.com/watch?v=BS4y-_KM…
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Apr 10
Going live on YouTube to answer your questions in 10 minutes. See you there.
youtube.com/live/nH8c60ZbSgw…
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Apr 10
With the @NASAArtemis splashdown happening Friday night, there is no better time to sit down with me and talk science. Join @WorldSciFest live on YouTube for a Q&A today at 4pm EDT.
Drop your questions below to get them answered live.
youtube.com/live/nH8c60ZbSgw…
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8 Dec 2025
Quantum mechanics is the law of likelihoods, not the script of events. Probabilities are set in stone; outcomes are improvised
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5 Dec 2025
Strands of a spider web--amazing electron microscope image (by Dr Martín Ramírez). Hidden wonders.
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4 Dec 2025
What Einstein called "spooky action"--quantum entanglement--arises from the mathematical fact that you can add quantum solutions together. Basic math; profound physics.
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4 Dec 2025
Tachyons—hypothetical faster-than-light particles—run on opposite rules: losing energy makes them go faster. They can never slow to light-speed.
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3 Dec 2025
It’s fine to thank God when an MRI, PET scan, or X-ray saves your life, but the thanks truly goes to physics—fundamental research that transformed how we probe matter. Cut funding and you cut tomorrow’s lifesaving breakthroughs.
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2 Dec 2025
My son Alec Day Greene in Annie Baker’s “Circle Mirror Transformation” at Oxford University.
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1 Dec 2025
I was drawn to mathematics because its truths seemed eternal. I've focused on physics because its truths speak to reality.
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1 Dec 2025
Cross a black hole’s edge and space and time swap roles, so you're drawn to the center as inexorably as tomorrow follows today.
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18 Nov 2025
Join me for a conversation with Nobel laureate Alain Aspect, who profoundly shaped our understanding of quantum mechanics
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18 Nov 2025
Here are the links to our conversation.
YouTube: youtu.be/2olKOaG_7JA?si=bm-g…
@WorldSciFest Website: worldsciencefestival.com/vid…
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14 Nov 2025
Congratulations Aaron Judge!
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22 Aug 2025
Hey Everyone--Join me today at 2 PM EST for a live Q & A. See you there. youtube.com/live/I3_me7RqteE
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