Anonymous at Wed, 22 May 2024 14:43:13 UTC No. 16187952

>>16187929
>Holographic Principle
Brilliant insight on the part of Susskind and t Hooft, but unfortunately pretty much universally misunderstood.
>and Entropic Gravity
Pure speculation with no real scientific merit.

Anonymous at Wed, 22 May 2024 15:29:09 UTC No. 16188014

>>16187929
>because 3D information falling into in a black hole can be imprinted onto the event horizon in 2D, that means our whole universe might be 2D because information can be converted from 2D to 3D and vice versa
sounds more like a mathematical curiosity than something that actually exists in reality

Anonymous at Wed, 22 May 2024 15:39:51 UTC No. 16188025

>>16188014
It's kind of both. The idea came from the study of baryons. With three quarks whizzing around in 3D space independently the math was hellish, but if you imagine yourself traveling past the particle at very close to the speed of light, the particle gets length-contracted until it's effectively two-dimensional. This greatly simplifies the math. From this, it was a small step to go "Where else can we get rid of a degree of freedom to make math easier?" and that led to some insights particularly into how information is conserved by black holes.

Anonymous at Wed, 22 May 2024 15:48:42 UTC No. 16188031

>>16188025
yeah it's like the reverse of a black hole
>The holographic principle was inspired by black hole thermodynamics, which conjectures that the maximum entropy in any region scales with the radius squared, and not cubed as might be expected. In the case of a black hole, the insight was that the information content of all the objects that have fallen into the hole might be entirely contained in surface fluctuations of the event horizon
https://en.wikipedia.org/wiki/Holographic_principle
Like if the info in a black hole is spread over its surface in 2d, then maybe all the information of the universe is spread across some area in 2d. Then it's like well yeah maybe, who knows

Anonymous at Wed, 22 May 2024 18:55:20 UTC No. 16188298

>>16187929
>Holographic Principle
Very cool, especially the ADS CFT