Was the Big Bang the Beginning? Reimagining Time in a Cyclic Universe
404,096
Published 2023-12-22
The Big Ideas Series is supported in part by the John Templeton Foundation.
Participants:
Peter Galison
Anna Ijjas
Paul Steinhardt
Moderator:
Brian Greene
SHARE YOUR THOUGHTS on this program through a short survey:
survey.alchemer.com/s3/7641151/Reimagining-Time-A-…
00:00 - Introduction
04:08 - Brian Greene Welcome
07:20 - The human urge to understand origins
15:39 - Early issues of the big bang
27:10 - The flatness problem
35:15 - If not the big bang what else could have happened?
40:44 - Resolving the problems of cyclic cosmology
54:30 - cyclic cosmology simulation
1:05:40 - How reliable are the results?
1:17: 10 - Does expanding space eventually contract?
WSF Landing Page: www.worldsciencefestival.com/programs/reimagining-…
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All Comments (21)
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Dr Greene makes it look so easy and relaxed meanwhile he's constantly calibrating and recalibrating the conversation for pacing, clarity, inclusion of the whole panel and overall cohesiveness. He's just an unbelievably good host and, of course, always on top of the material. Awesome presenter.
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I wanna know who that guy is that queues up the animations and videos of exactly what the speakers are talking about a split second after they start talking about it.. that guy deserves a raise.
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Right now, Penrose's take on conformal cyclic cosmology makes more sense to me.
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These talks are great, thanks for putting them out for free
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" We should all work on something that is wrong." - Anna Ijjas. I am taking this to the bank 😤.
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Hi another Anna here, thanks for telling this amazing story Anna, and the other people in the video :D
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Always like B Greene and much appreciation for finding Sir Roger Penrose and his C3 theory decades ago of cyclical big bang and his MC Escher inspiration.
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I come here because I have no friends that want to talk about these things. (insert tears)
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This was one of the best, even most important programs yet from the WSF. Thanks for letting us eavesdrop on great ideas.
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Fantastic.Thank you so much for organising this festival, and for its live broadcadting. I have found this conversation particularly interesting.
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Thanks for the vid and engagement. Great channel for exploring
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Brian is the GOAT. So captivating the way he gets science accross
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incredible discussion about the bleeding edge of modern physics and cosmology.
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It hit me like a ton of bricks. Our measure of expansion is what we see, not what is out there, because the information hasn't reached us. I read and accepted 'inflation" back in the 80's, and I always suspected it didn't matter how or why in the first second. The entire universe acts like a black hole, but once it gets too big it breaks, and it will happen again. This talk is simple and amazing. When spacetime warps and contracts, we wont see it coming. Gr8! Peace ☮💜Love
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Engaging conversation. Thank you. 👍
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Very nice discussion. Thank you! 👏👏👏
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This is the boldest and most intriguing idea in cosmology that I have come upon since inflation itself. I need to look into this more deeply. If true, then the implications are staggering, and many ideas from Hawking radiation to multiple universes are no longer viable or necessary.
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Roger Penrose Cyclic Cosmology
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first goes like, then i watch. brian never dissapoints. never
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Another exceptional World Science Festival event.
