Everett interpretation and Convivial Solipsism

TL;DR

This paper proposes Convivial Solipsism as an interpretation of quantum mechanics that eliminates paradoxes, non-locality, and the need for wave function collapse by positing a single world without physical state changes during measurement.

Contribution

It introduces Convivial Solipsism as a novel interpretation that differs from Everett by maintaining a single world and avoiding wave function collapse and non-locality.

Findings

Quantum paradoxes vanish without physical state change assumptions.

Convivial Solipsism resolves the Wigner friend problem.

The interpretation eliminates non-locality in quantum mechanics.

Abstract

I show how the quantum paradoxes occurring when we adopt a standard realist framework (or a framework in which the collapse implies a physical change of the state of the system) vanish if we abandon the idea that a measurement is related (directly or indirectly) to a physical change of state. In Convivial Solipsism, similarly to Everett interpretation, there is no collapse of the wave function. But contrary to Everett interpretation, there is only one world. This allows also to get rid of any non-locality and to provide a solution to the Wigner friend problem and its more recent versions.