gentzen
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Looks like Lord Jestocost "likes" Heisenberg's variant of Copenhagen:Lord Jestocost said:An event localized in space and time is appropiately amplified to bring it to the attention of the experimenter.
gentzen said:The version by Heisenberg and his "pupils" (Weizsäcker, Peierls, ...) is inherently subjective, hence the causal sequence is when the subject learns the information, and updates his expectations.
In the "other" thread, Morbert and Fra showed "appreciation" for Bohr's variant of Copenhagen:
Fra said:Quick reflection on the book looking at chapter 12.
Peres writings is very good, I like them, but the "sharpness" still rests on a few concepts that conceptually take the "role" of the heisenberg cut, some of the keys are
"Consistency thus requires the measuring process to be irreversible. There are no superobservers in our physical world."
Peres, p366
What you can learn about "my own opinion" from this is that I like to keep Bohr's and Heisenberg's variant of Copenhagen separate. I once also tried to find out who created that mess:
Later I read articles which disagree with that guess. Not really sure. I mean, Heisenberg could have stopped him. Or Wheeler. Maybe they didn't realize how different Bohr's views actually were, because "Bohr himself was famously unable to express himself clearly". Even today, QBists cite Bohr as if he would agree with their views. OK, Chris Fuchs stopped doing this at some point, and distanced himself from Bohr. But Mermin never distanced himself from Bohr, as far as I know.The idea that the "Copenhagen interpretation" should be the common core of the beliefs by Bohr and Heisenberg probably goes back to Henry P. Stapp in 1972.