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Joe Schindler: on 4/21/21 at 17:33pm UTC, wrote Quantum Limits of Knowledge 2021 Wednesday 31st March, 2021 QBism...


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TOPIC: On a Variety of Realism that fits with an anti-realist approach of QM by Michel Bitbol [refresh]
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FQXi Administrator Joe Schindler wrote on Apr. 21, 2021 @ 17:33 GMT
Quantum Limits of Knowledge 2021

Wednesday 31st March, 2021



QBism (Quantum Bayesianism or Quantum Bettabilitarianism) has an instrumentalist, and therefore anti-realist, ancestry. Yet, it accommodates a non-conventional form of realism that still has to be assessed. Christopher Fuchs calls it "participatory realism". It is a form of realism for someone who cannot be dissociated from the "reality" she explores. Here, I explore several features and consequences of "participatory realism". I first connect it with the archetypal definition of "anti-realism" by Michael Dummett. I then explore the atypical connection between "reality" and theoretical symbolisms it involves: in "participatory realism", representationalism is discarded, and normativism is advocated instead. I finally compare "participatory realism" with other alternative forms of realism, such as relational realism.



Keywords: #quantum #foundations #interpretation #realism #participatory #observer

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