[theanonymousone]

Is it not the same thing as/very similar to falsifiability in philosophy of science?

[pmdulaney]

Yes, I think it is, now that you mention it. But maybe "non-decidable" could be dropped into a casual conversation more easily?

But if I say that I think an issue is non-decidable, my interlocutor is likely to think that I simply can't make up my mind!