Quote Originally Posted by lardy View Post
You can look into what 'theory' means in the context of a scientific theory. It's not what you think, as Jon is completely correct to use that word.

For example, there is a law of gravity, and I'm sure we'd all agree that gravity is real. But there's also a theory of gravity, which explains why it happens. Laws don't change (as gravity is not suddenly going to start acting differently) but theories do get revised as we have more evidence.
There is also a theory of anti-gravity. I bought my wife a book on it for Christmas. She hasn't been able to put it down.