Bad Pun Dog

Who is overreacting now by deleting his comments?

I sometimes change my mind on what I want to say. Physics never does though.

Physics doesn't (well, cum grano salis perhaps, see quantum mechanics) - just the humans who make the theory of it do!!! (Hope you know the 19th century history of chemistry and physics).

Everyone believed Aristotle for thousands of years until Galileo and Newton proved him wrong

Dont get it