Convivial Solipsism as a maximally perspectival interpretation

TL;DR

This paper classifies various quantum interpretations, introduces the concept of perspectival interpretation emphasizing observer-relative truth, and compares the perspectival degrees of QBism and Convivial Solipsism, highlighting the latter's higher perspectival nature.

Contribution

It presents a new classification scheme for quantum interpretations and analyzes the degree of perspectivalism in QBism and Convivial Solipsism, establishing the latter as more perspectival.

Findings

Convivial Solipsism is more perspectival than QBism.

Perspectival interpretation implies observer-relative truth.

The paper offers a new classification of quantum interpretations.

Abstract

A classification of different interpretations of the quantum formalism is examined and the concept of perspectival interpretation is presented. A perspectival interpretation implies that the truth is relative to the observer. The degree to which QBism and Convivial Solipsism are perspectival is examined and Convivial Solipsim is shown to be perspectival at a higher degree than QBism or at least than the QBism founders version.