[Junior]

Okay, you've proposed a hypothesis. Now go out and get the evidence to back it up. If you can't find any evidence, you will need to either modify or discard your hypothesis. That's science, baby!

[Alberta's Child]

If you can't find any evidence, you will need to either modify or discard your hypothesis.

Or explain why the evidence isn't there, which is kind of what punctuated equilibrium is all about.