Re. the measurement problem What/when is the physical happening that corresponds to wavefunction collapse?
Reply: Superposition of outcome states has neither noumenal nor phenomenal reality. Using the rabbit from a hat analogy- the superposition of states is not a material rabbit, It is struggling and being calm; mutually exclusive states. This means a superposition can not be interacting with the existing environment, causing collapse to a singular state. Therefore perhaps a different question should be asked. It can be considered a place holder for unknown evolution of the configuration of the universe ,A 'black box' happening. When should the template potential (existing, material, noumenal Object reality) be given up prior to manifestation of a singular observation/ measurement result (phenomenal product)?