Why the Big Bang Never Happened | Leonard Susskind

Описание: You’ve been told a story your whole life: 13.8 billion years ago, everything was compressed into an infinitely dense point, it exploded, and the universe was born. It’s in every textbook. And it’s almost certainly wrong.

There was no explosion. There was no infinitely dense point. And there probably wasn't even a beginning.

In this video, we strip away the pop-science metaphors and look at what cosmology, general relativity, and quantum mechanics actually say about the origins of our universe. From the breakdown of math at the "singularity" to the mind-bending realities of eternal inflation, the Big Bounce, and Hawking's no-boundary proposal, we explore why the universe is far stranger than a simple explosion from nothing.

Chapters:
0:00 - The Biggest Lie in Cosmology
1:45 - What Actually Happened 13.8 Billion Years Ago
4:10 - The Problem with the "Singularity"
6:30 - Quantum Gravity & The Planck Era
9:20 - Expanding Space vs. Moving Galaxies
12:15 - Cyclic Cosmology and The Big Bounce
15:00 - Eternal Inflation & The Multiverse
18:30 - Stephen Hawking's No-Boundary Proposal (Imaginary Time)
22:00 - Why the Universe Might Be Eternal

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