No master (key) No (measurement) problem

TL;DR

This paper argues that recent debates and thought experiments do not fundamentally alter the measurement problem in quantum mechanics, emphasizing the need for reflection on the core paradigms of physics.

Contribution

It clarifies that recent discussions do not constitute a paradigm shift but highlight the importance of foundational reflection in quantum physics.

Findings

Recent debates do not challenge the legitimacy of quantum mechanics.

Extended Wigner's-friend experiments do not introduce fundamentally new issues.

The measurement problem calls for paradigm reflection rather than new solutions.

Abstract

Can normal science-in the Kuhnian sense-add something substantial to the discussion about the measurement problem? Does an extended Wigner's-friend Gedankenexperiment illustrate new issues? Or a new quality of known issues? Are we led to new interpretations, new perspectives, or do we iterate the previously known? The recent debate does, as we argue, neither constitute a turning point in the discussion about the measurement problem nor fundamentally challenge the legitimacy of quantum mechanics. Instead, the measurement problem asks for a reflection on fundamental paradigms of doing physics.