EDIT: Let’s cool it with the downvotes, dudes. We’re not out to cut funding to your black hole detection chamber or revoke the degrees of chiropractors just because a couple of us don’t believe in it, okay? Chill out, participate with the prompt and continue with having a nice day. I’m sure almost everybody has something to add.
What it is, is an extremely powerful tool for reducing uncertainty about the world. Not eliminate, reduce. What it is not is a tool for “proving” “facts”. Claiming a “proven fact” is belief, not empirical science. An extremely consistent and useful theory, of course! But not a proven fact.