The Holographic Universe Explained

PBS Space Time · 3.5M views · 2019-04-10 · 18:24

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Overview

A PBS Space Time episode explaining the holographic principle: the idea that our 3+1 dimensional universe may be described by information on a lower-dimensional boundary. It walks through black hole entropy and the AdS/CFT correspondence.

On Hacker News

HN commenters point to it as an accessible way to get a grip on AdS/CFT and the holographic principle whenever black holes or information physics come up.

Recommended by 2 HN people across 2 months · HN mentions 2019–2022

Topics

Quantum physics Cosmology & astrophysics

What people said

Khaine · 2020-01 · Strong recommendation
PBS Space Time have done a number of episodes on the holographic principle[1] I strongly recommend anyone interested in physics check out the channel [1] [VIDEO]
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bentona · 2019-11 · Strong recommendation
Here's a video that made me feel like I almost half-way understood one of the main underlying principles (AdS/CFT correspondence) [VIDEO] re: "Following the discovery of this duality by Juan Maldacena" Semi-unrelated: If you like articles like this, I bet you'll love that whole channel.
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bentona · 2019-11 · Recommendation
There's a lot here but this specifically talks about AdS/CFT which seems to be a pretty core concept [VIDEO] Just linked this on a similar information theory thread [1] (glad it's so popular on HN right now!) 1: [LINK]
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Sources

Video by PBS Space Time, played through YouTube.

HN Library · Source license

Data and selection notes

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