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- TL;DR Summary
- announces my newest paper, and relates it to a recent discussion on reality and quantum physics
I have written a new paper:
What is observable experimentally is part of what is real (if there is anything real in physics). The totality of what is real defines (by definition) the fundamental state of the universe. Thus each observation (and in particular each measurement) encodes a certain tiny part of this fundamental state.
The question is what quantum mechanical states have to do with this fundamental state of the universe, to which we have partial experimental access.
- A. Neumaier, The Born rule -- 100 years ago and today, Manuscript (2025). arXiv:2502.08545
A. Neumaier said:Observations are physical in Dyson's text quoted in #1, since they are taken as objective pieces of evidence. Since they do not appear in the wave function, they are additional input to reality.
martinbn said:Not sure what you mean by this and how it relates to my post! Are you saying that Dyson takes observations for lambda?
See Subsection 3.5: What is missing in the foundations? of my new paper.A. Neumaier said:I am saying that Dyson takes certain things for real. These must be described by real physics, and play the role of what Demystifier calles lambda.
What is observable experimentally is part of what is real (if there is anything real in physics). The totality of what is real defines (by definition) the fundamental state of the universe. Thus each observation (and in particular each measurement) encodes a certain tiny part of this fundamental state.
The question is what quantum mechanical states have to do with this fundamental state of the universe, to which we have partial experimental access.
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