Science is not about proof it’s about evidence.
That’s why science moves ahead much faster than any other branch of human knowledge. Why? Because there is always more and more evidence, more and more reasons to escape from our CVS and move to a BVS.
It’s the uncertainty of science that gives it speed. Certainty only slows us down.
No-one expresses the intrinsic uncertainty of science better than the great American physicist Richard Feynman. In this very brief video he says:
I have approximate answers and possible beliefs in different degrees of certainty about different things, but I’m not absolutely sure of anything.