Information and the Foundations of Quantum Theory
We believe that the hypothesis ‘it from bit’ originates from the assumption that probabilities have a fundamental, irremovable status in quantum theory. We argue against this assumption and highlight four well-known reformulations/modifications of the theory in which probabilities and the measuring apparatus do not play a fundamental role. These are: Bohmian Mechanics, Dynamical Collapse Models, Trace Dynamics, and Quantum Theory without Classical Time. Here the ‘it’ is primary and the ‘bit’ is derived from the ‘it’.