The discussion centers on the implications of special relativity and quantum entanglement, particularly regarding the behavior of two entangled photons as observed from different inertial frames. Participants explore the nature of wavefunction collapse, causality, and the interpretation of measurements in quantum mechanics.
Participants express multiple competing views on the nature of wavefunction collapse, causality, and the implications of different interpretations of quantum mechanics. There is no consensus on these issues, and the discussion remains unresolved.
Participants note limitations in their understanding of quantum theory and the evolving nature of interpretations, such as the abandonment of the Copenhagen Interpretation and the implications of quantum decoherence.
This discussion may be of interest to those exploring the intersections of quantum mechanics and relativity, particularly in the context of entanglement and the philosophical implications of different interpretations of quantum theory.
Dmitry67 said:If you adhere to the flavor where wavefunction is not real and collapse is just an information update, you can't avoid issues with the early universe: as 'wavefunction is underfined without measurement' (c) Calrid, and the very first measurement devices were possible only when Universe had cooled down enough so the information could be preserved in some system and there was a possibility for the systems, isolated from the environment to some extent, then the whole history of the early Universe appears to be non-realistic. Wavefunction was not defined at all in early Universe (?) until the very first measurement device had formed (magically from non-existent wavefunction?) when (?)
In a flavor where wavefunction is real, you have issues with relativity, described in the original post.