B What Principles Govern the Emergence of Spacetime According to Renate Loll?

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Shouldn't causality follow from spacetime itself instead of putting it in by hand in order to calculate a path integral?
 
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If one wants to understand the emergence of spacetime, and ask why 4D, and why a particular geometry I think one needs some primary constructing principles, the question is which ones.

I think one can entertain the precursors of locality and causality in more abstract information theoretic forms that does not use spacetime. If one imagines macroscopic spacetime to emerget from an abstraction infromation processing layer, then various forms of "information goemetry" that introduce the concept of distance from statistical/probabilistical measures. I think "locality" and "causality" can be more abstractly interpreted so that information processes are influenced only by available information(ie "local"), and it's outputs and actions are independent of what it is hidden from them (causality).

/Fredrik
 
https://arxiv.org/pdf/2503.09804 From the abstract: ... Our derivation uses both EE and the Newtonian approximation of EE in Part I, to describe semi-classically in Part II the advection of DM, created at the level of the universe, into galaxies and clusters thereof. This advection happens proportional with their own classically generated gravitational field g, due to self-interaction of the gravitational field. It is based on the universal formula ρD =λgg′2 for the densityρ D of DM...
Many of us have heard of "twistors", arguably Roger Penrose's biggest contribution to theoretical physics. Twistor space is a space which maps nonlocally onto physical space-time; in particular, lightlike structures in space-time, like null lines and light cones, become much more "local" in twistor space. For various reasons, Penrose thought that twistor space was possibly a more fundamental arena for theoretical physics than space-time, and for many years he and a hardy band of mostly...
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