A speculative remark on holography

TL;DR

This paper explores the implications of holography in closed, re-contracting universes, proposing that such a scenario would eliminate all spatial degrees of freedom and require a new quantum mechanics framework.

Contribution

It introduces a speculative scenario where holography in closed universes leads to the elimination of spatial degrees of freedom, challenging current understanding.

Findings

Holography may eliminate all spatial degrees of freedom in certain cosmological models

Realizing holography in closed universes requires a new concept of quantum mechanics

The scenario implies an increased power of natural laws

Abstract

Holography suggests a considerable reduction of degrees of freedom in theories with gravity. However it seems to be difficult to understand how holography could be realized in a closed re--contracting universe. In this letter we claim that a scenario which achieves that goal will eliminate all spatial degrees of freedom. This would require a different concept of quantum mechanics and would imply an intriguing increase of power for the natural laws.