Earthling
David Henson
How about theorem?
That's how science works. It makes observations, collects evidence, proposes a theorem, then tests it.
Oh, I never get tired of hearing that. What does politics do in your estimation? Rob, steal, cheat, lie, corrupt? Guess what? Nothing ever does what it says it does.
So again, what are specific theories or facts you think have changed?
...and where did these 'atheists' come from?
All of them in the past, present and future.