What constitutes evidence?

So, Neo, the question is probably not so much "what constitutes evidence" as it is "what is accepted as evidence" (especially sufficient, or convincing evidence)?

Now you have to go to all the trouble of asking "accepted by whom," and/or "convincing to whom?" I can tell you this much: No amount of purported "evidence" will ever convince me that my pet theories are somehow mistaken. If you don't believe me, just try me, eh?

Not astute, pragmatic. Evidence is some fact, that convinces some one, of some idea, with some degree of certainty. There's no one-size-fit-all.