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The Holographic Universe Explained

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.

Why HN readers recommended it

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.

This is a summary from the source dataset, not an endorsement by Hacker News or the video creator.

Video & recommendation details

Creator / channel
PBS Space Time
Topic
holographic principle
Format
explainer
Level
general
HN recommenders in dataset
2
HN mentions in dataset
6
Recommendation years in dataset
2019–2022

These counts and years describe the included Hacker News records; they are not YouTube views or the video’s publication date.

From the original HN conversations

Excerpts from the recorded comments. Follow each source for the full comment and surrounding discussion.

  • 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.

    bentona on Hacker News · 2019-11
    In Hologram Within a Hologram Hints at Fate of Black Holes
  • 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]

    Khaine on Hacker News · 2020-01
    In Gravity: We might have been getting it wrong
  • 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]

    bentona on Hacker News · 2019-11
    In Information Is Physics

Summaries, classifications and recommendation records are from the HackerTube source dataset. Read about this library and its limitations.

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