Schrödinger's cat and Wigner's friend

Fred H. Thaheld

Ian Colin Percival

W. M. Stuckey, Michael Silberstein, Timothy J. McDevitt

Abstract In Sub-Chapter 9D we present Schrödingerös Cat and Wigner’s Friend showing how the assumptions leading to the absurdity or contradiction are nonstarters on our view. Whenever one does measure a variable for some quantum, the outcome will become part of the self-consistent, shared information between observers satisfying intersubjective agreement on the model. The new scientific worldview given by our constraint-based, principle account of quantum mechanics guarantees it.

Peter John Bussey

Antoine Suárez

Physicians define death as the "irreversible" breakdown of all brain-functions including brain-stem. By "irreversible" they mean a damage that is beyond the human capacity to restore the patient's healthy state. In the same line I propose to complete the definition of quantum physics in [1] by Principle D (Detection): "Detection outcomes (like death) are ordinarily irreversible and observer-independent". It is then argued that this principle excludes generalization of quantum superposition to visible objects bearing observer-dependent outcomes. However this exclusion is not absolute: It rather means that "Schrödinger's cat" and "Wigner's friend" should be considered "miracle" narratives beyond the domain of science.