Just as in mathematics there are things that are undecidable. The real question is not whether evolution exists, it is whether god exists and if so, did it create the universe yesterday, last Thursday, 6,000 years ago, 13.7B years ago, -Aleph0 years ago, in parallel or in series, as a quantum (over the Rational), or continuous (over the Reals) space.
Myself, I think the universe exists as a serial expression of all possible states in a countable universe (-Aleph0 to Aleph0 in every direction, x,y,z,t, others) and we travel through it as an information set on top of that universe, with the possibility that we can exercise free will over that countable universe using randomness generated over the Reals, not over the Rationals. That makes our decisions unpredictable in every sense, even if our choices are countably infinite. But that is actionable (it gives me a foundation for making decisions) but not testable (yet). It may never be testable.