> I would put relativity at 9.5 Fair point. It was crowded up there, and my physics is less than current. I think we agree, really. I'm just not as strict on

> I would put relativity at 9.5 Fair point. It was crowded up there, and my physics is less than current. I think we agree, really. I'm just not as strict on the semantics of the word "fact". I agree that laziness on the margins of fact is lazy, esp for specialists. I don't think we can authoritatively say that anything is an absolute truth. But there are some really useful models. The extinction event model serves a purpose for paleontologists, and it's pretty good for most of them. It serves a different purpose for non-specialists.