hackertube.io

The Holographic Universe Explained

PBS Space Time · explainer · Watch on YouTube

Quantum physicsCosmology & astrophysics

What it is

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 Hacker News recommends 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.

  • 2 people recommended it
  • 2 different months
  • 2 strong recommendations
  • first 2019, last 2022

What HN commenters said

  1. “Here's a video that made me feel like I almost half-way understood one of the main underlying principles (AdS/CFT correspondence)”

    Makes AdS/CFT correspondence almost understandable.

    bentona, 2019-11 · Strong recommendation · in “Hologram Within a Hologram Hints at Fate of Black Holes”

  2. “I strongly recommend anyone interested in physics check out the channel”

    PBS Space Time's episodes on the holographic principle.

    Khaine, 2020-01 · Strong recommendation · in “Gravity: We might have been getting it wrong”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: holographic principle, ads/cft, black holes, theoretical physics, pbs space time

Also recommended by the same people