No, you're right that there are different levels of proof in different sciences. I think that we lose each other in these discussions when we forget that. But i

No, you're right that there are different levels of proof in different sciences. I think that we lose each other in these discussions when we forget that. But it makes sense to have a different burden of proof for statements about different aspects of the world. The Physics equivalent of the broken statue is a 2-sigma result. It's less interesting there because it's easier to repeat the events leading to the result. Speculation is a powerful component of Science and it's easy for us to mistake a scientist's speculation for a sound fact.