The Quantum Measurement Problem

The quantum measurement problem is the most fundamental question of all: How the ghostly quantum mechanical coexistence of many mutually incompatible possibilities result in the concrete reality of the normal world, even though we and our measuring instruments are all made of atoms obeying quantum mechanics. In this brief article we lay down the criteria for such a mechanism.For revised and published version, see: International Journal of Quantum Foundations Supplement, 2021, vol 3, iss 2, p. 29-32, URL: https://ijqf.org/archives/6231