Einstein was a realist who was upset that the only interpretation available to him was anti-realist. Saying that he took the wavefunction as object of knowledge is technically true, ie, false.
I agree that my phrasing was a bit misleading here. Reading it again, it sounds like Einstein wasn’t a realist, which of course is false. For him, QM was a purely statistical theory which needed to be supplemented by a more fundamental realistic theory (a view which has been proven to be untenable only in 2012 by Pusey, Barrett and Rudolph).
Thanks for conceding that the Copenhagen interpretation has meant many things. Do you notice how many people deny that? It worries me.
I don’t know how many people really deny this. Sure, people often talk about “the” Copenhagen interpretation but most physicists use it only as a vague label because they don’t care much about interpretations. Who do you have in mind denying this and what exactly worries you?
I agree that my phrasing was a bit misleading here. Reading it again, it sounds like Einstein wasn’t a realist, which of course is false. For him, QM was a purely statistical theory which needed to be supplemented by a more fundamental realistic theory (a view which has been proven to be untenable only in 2012 by Pusey, Barrett and Rudolph).
I don’t know how many people really deny this. Sure, people often talk about “the” Copenhagen interpretation but most physicists use it only as a vague label because they don’t care much about interpretations. Who do you have in mind denying this and what exactly worries you?