Do people who deny evolution realise how they sound to the scientifically literate?

[Naissur]

His theory on gravity isn't what I am talking about. He formulated a theory on space and time which he pretty much failed entirely and it was accepted until Einstein came and debunked it.

Newton used certain ideas about time and space when he was formulating his classical mechanics. These ideas were highly accurate and only differ from Einstein's theory of relativity at high speeds. So again, Einstein improved him in this respect. But he also entertained a lot of weird ideas about time and space that had nothing to do with classical mechanics. He used a lot of these to argue with his contemporary philosophers. So if he had a theory of spacetime that died, it was a metaphysical one - not a scientific one. Nonetheless, scientific theories are falsifiable, and so it's possible for some well established scientific theories to turnout to be false. I've no qualms about this fact whatsoever!