Ask Ethan #17: The Burden of Proof

Perhaps no word in the English language generates as much misunderstanding as the word theory. In scientific circles, this word has a very specific meaning that’s different from everyday use, and — as a theoretical astrophysicist myself — I feel it’s my duty to help explain exactly what we mean when we use it.

An excellent piece on what it means to have a theory vs a law vs an hypothesis.