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The Crisis at the Edge of a Black Hole | World Science Festival

Brian Greene sits down with theoretical physicist Raphael Bousso to explore some of the deepest puzzles in modern physics.

Their conversation centers on the black hole information paradox, one of the

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This is why I love theoretical physics. Even without definitive experimental answers yet, the ideas and reasoning push the boundaries of human knowledge.
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Thank you Brian!
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"Back like a rebel, making trouble..." 😁

Welcome back, WSF team!
So many thanks to Dr. Greene and Buosso for letting us in on their conversation!
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@borg.ia2 From YouTube ↗ 21 Mar 2026 1
Interesting video.
On the "getting lucky" with observations: it appears it is already happening. I read an article on M31-2014-DS1 on a vanishing star that turned into a blackhole (in about 2h) without "fireworks". Now protocols are developed to catch similar events "in real time".

Personally, as a side hobby, I try and identify what "(known) matter" would satisfy the condition to have the required mass fit within the volume defined by the escape velocity c (aka event horizon). I do this for the very small 3 solar masses blackholes.

Interestingly enough, for this sort of small blackholes at least, it becomes obvious that something must happen with infalling matter and rather fast in order to fit in certain scenarios.
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Great discussion! 🫡🫡🫡
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Always love these talks!
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Thank you for such a wonderfully insightful discussion.
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Hi Brian, thanks for another fantastically interesting interview with Raphael Bousso. I love hearing what he has to say. I would also love it if you could interview Paul Townsend some time soon. Warm rgds, Phil Cowdall
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After soooo long, I was worried for abrupt silence from Brian and WSF
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a wonderful conversation by two great (and highly pleasant) physicists.
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I missed the talks. glad you are back!!!!
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Please make an interview with Jacob Barandes about the measurement problem
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A great follow up to the previous conversation and the comments to it.
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Really extraordinary. There is nothing else like this anywhere. More please!
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I missed Brian and World Science Festival, glad to see another video.+Edit: amazing conversation.
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@neilb4me7 From YouTube ↗ 21 Mar 2026 16
World Science Festival is back!
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Been waiting for the next World Science Festival video! Thanks! Really great stuff.
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Putting aside ER=EPR, entanglement, Page curve, AdS/CFT, etc., I kept thinking of the Coyote going SPLAT on a black hole painted by the roadrunner.
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Dr.Greene
Thank you soooo much for this video. I have been checking the WSF site everyday for new content, I am very happy that is not only once a year any more, like the old WSF events. It is hard to make these programs and we beg you to continue the great job and give us more of this. R.Bousso is my favorite physicist, he is fantastic. I will be watching this about 10 more times until your next one.
Thank you!!
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Another great conversation. It was a privilege to listen in. Thank you!