> Check out "superdeterminism," first proposed by Bell (of Bell's inequality fame) himself

“Proposed” - but as something that avoids the issue but it’s not worthy of much consideration.

  - I was going to ask whether it is still possible to maintain, in the light of experimental experience, the idea of a deterministic universe?

  You know, one of the ways of understanding this business is to say that the world is super-deterministic. That not only is inanimate nature deterministic, but we, the experimenters who imagine we can choose to do one experiment rather than another, are also determined. If so, the difficulty which this experimental result creates disappears.

  - Free will is an illusion - that gets us out of the crisis, does it?

  That's correct. In the analysis it is assumed that free will is genuine, and as a result of that one finds that the intervention of the experimenter at one point has to have consequences at a remote point, in a way that influences restricted by the finite velocity of light would not permit. If the experimenter is not free to make this intervention, if that also is determined in advance, the difficulty disappears.