This is a bit of a paradox. Indication that it works requires some kind of proof. Proof is mostly a byproduct of people trying things. If the rule is “don't try it until it’s proven,” and proof requires people trying it, then any new innovation would be in a little bit of a pickle.
Your worldview requires other enterprising people to try new things, write about them, find the rough edges, help to iterate and improve, and then surface their findings in such a way that it can meet the bar of "working".