This article presents a white paper summarizing current knowledge on quantum gravity phenomenology and its multi-messenger signals. It provides an overview of the field, discusses experimental and observational signatures, and identifies key questions and challenges.
A proposed experiment using a quantum-mechanical AI to test the Wigner’s Friend thought experiment could have profound implications for our understanding of quantum reality and the nature of observation.
This paper explores the concept of infra-Bayesian physicalism and its application to interpreting quantum mechanics, particularly in the context of an agent-environment system. The author outlines their formal setup, including the definition of key terms such as 'agent', 'observation', and 'state'. They also delve into the differences between the traditional many-worlds interpretation and the infra-Bayesian physicalist setup. Finally, they provide an overview of the structure of the paper, dividing it into various sections.
