Yes, because it falsifies every interpretation of quantum mechanics not just MWI itself. I think in context here, "is superdeterminism falsifiable" is as silly a question as "is logic falsifiable" or "is causality falsifiable". Specific mmathematical, causal or superdeterministic models are always falsifiable, but the idea that superdeterminism as a whole is not falsifiable should be no more surprising or interesting than the fact that logic is not falsifiable.

If superdeterminism allows specific models. The idea is that the experimenter's behavior is fine tuned so he can't discover superdeterminism, which means falsification would be a paradox by definition.

Given we can enumerate all possible models because we can enumerate all possible Turing machines, we clearly have enough degrees of "freedom" in this universe that that isn't an issue.

> Specific mmathematical, causal or superdeterministic models are always falsifiable

I request further elaboration here, please. Examples would be great.

> than the fact that logic is not falsifiable

What?

There is non-linearity in the evolution operator though - it's called gravity. It's why MWI in its trivial form is falsified - though with a linear theory of everything (potentially string theory) - it might be possible.