Why QBism is not the Copenhagen interpretation and what John Bell might have thought of it

TL;DR

This paper explains QBism's novel approach to quantum mechanics, contrasting it with the Copenhagen interpretation, and speculates on John Bell's potential views on QBism.

Contribution

It clarifies how QBism fundamentally differs from the Copenhagen interpretation and explores how John Bell might have responded to QBism's ideas.

Findings

QBism resolves longstanding conceptual puzzles in quantum mechanics.

It highlights key differences between QBism and Copenhagen interpretation.

Speculates on John Bell's possible reactions to QBism.

Abstract

Christopher Fuchs and R\"udiger Schack have developed a way of understanding science, which, among other things, resolves many of the conceptual puzzles of quantum mechanics that have vexed people for the past nine decades. They call it QBism. I speculate on how John Bell might have reacted to QBism, and I explain the many ways in which QBism differs importantly from the orthodox ways of thinking about quantum mechanics associated with the term "Copenhagen interpretation."