That sounds logical.

Theory: n. a supposition or a system of ideas intended to explain something, esp. one based on general principles independent of the thing to be explained. --- the key word is supposition. Gravity, we have enough evidence of to say it exists, though theoretical physicists might argue that point. It's their right to question. :)

A theory isn't considered a law until it can accurately predict future events or circumstances. When evolutionists correctly predict what organisms will become, THEN they can say evolution is a fact. By the way, that will never happen.