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Suppressing spacetime emergence.

Joshua Norton1

  • 1Logic and Philosophy of Science, University of California, Irvine, United States.

Studies in History and Philosophy of Science
|May 29, 2021
PubMed
Summary
This summary is machine-generated.

Emergent spacetime theories face a contradiction between general relativity

Keywords:
EmergenceLoop quantum gravityPerspectivismScale-dependent ontologySpacetime

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Area of Science:

  • Theoretical Physics
  • Quantum Gravity
  • Philosophy of Physics

Background:

  • Reconciling quantum mechanics and general relativity requires a theory of quantum gravity.
  • A key challenge is explaining spacetime within a theory that lacks it fundamentally.
  • Some approaches propose spacetime emerges from a non-spatiotemporal ontology in the low-energy limit.

Purpose of the Study:

  • To critically evaluate existing accounts of spacetime emergence.
  • To identify and address a prima facie contradiction in current models.
  • To propose an alternative framework, ontic-perspectivism, for understanding emergence.

Main Methods:

  • Analysis of existing literature on spacetime emergence.
  • Identification of a contradiction between scale-independent spacetime ontology in GR and scale-dependent emergence.
  • Development of the ontic-perspectivism framework.

Main Results:

  • The analyzed accounts of spacetime emergence fail to resolve the fundamental challenge.
  • A contradiction exists between the scale-independent nature of spacetime in General Relativity and scale-dependent emergence.
  • Avoiding this contradiction requires modifying the target of emergence and adopting perspectival ontology.

Conclusions:

  • Current models of spacetime emergence are inadequate.
  • Ontic-perspectivism offers a potential resolution by reframing ontological claims.
  • The arguments presented have broader implications for other emergence-based theories in physics.