What is meant by the following 2 statements?

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SUMMARY

The discussion centers on the concepts of holographic screens and their implications in theoretical physics, particularly in relation to the work of Erik Verlinde as outlined in arXiv: 1001.0785v1. It asserts that the physics of a region can be derived from the physics on a surface or "screen" that borders that region, suggesting a model where gravity emerges from this framework. Additionally, the emergence of holographic direction is linked to phenomena such as redshifts and coarse-graining procedures, indicating a deeper connection between gravity and entropy.

PREREQUISITES
  • Understanding of holographic principle in theoretical physics
  • Familiarity with redshift concepts in cosmology
  • Knowledge of coarse-graining procedures in statistical mechanics
  • Basic grasp of Erik Verlinde's theories on gravity and entropy
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  • Study the implications of the holographic principle in modern physics
  • Explore the concept of redshift in relation to cosmic expansion
  • Research coarse-graining techniques in statistical mechanics
  • Review Sabine Hossenfelder's notes on Verlinde's paper for deeper insights
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The discussion is beneficial for theoretical physicists, cosmologists, and researchers interested in the intersection of gravity, entropy, and the holographic principle.

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Thinking about accelerated observers, one can in principle locate holographic screens everywhere in space?

Emergence of holographic direction is accompanied by redshifts and coarse-graining procedure?

Reference: arXiv: 1001.0785v1
 
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Verlinde is assuming that the physics of a region is actually derived from physics on a surface, or "screen", bordering that region. Well, it's a model. He's hoping that gravity falls out of this picture like the extra space dimension does.

This paper has been copiously discussed online.

Sabine Hossenfelder has a set of notes that may help you make sense of the paper.
http://arxiv.org/abs/1003.1015

...and a short discussion here:
http://backreaction.blogspot.co.nz/2010/03/gravity-is-entropy-is-gravity-is.html
 

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