Bundle_Gerbe comments on The Useful Idea of Truth - Less Wrong
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Your view reminds me of Quine's "web of belief" view as expressed in "Two Dogmas of Empiricism" section 6:
Quine doesn't use Bayesian epistemology, unfortunately because I think it would have helped him clarify and refine his view.
One way to try to flesh this intuition out is to say that some beliefs are meaningful by virtue of being subject to revision by experience (i.e. they directly pay rent), while others are meaningful by virtue of being epistemically entangled with beliefs that pay rent (in the sense of not being independent beliefs in the probabilistic sense). But that seems to fail because any belief connected to a belief that directly pays rent must itself be subject to revision by experience, at least to some extent, since if A is entangled with B, an observation which revises P(A) typically revises P(B), however slightly.