Some. I tell you that I mixed chemicals X and Y to make Z. You are initially 99% confident that X and Y don't make Z and so think I'm probably lying. Then you read that something in the air in the state in which I live cause X and Y to create Z. Won't your estimate of my having told the truth go up?
I would be even more certain that X and Y don't make Z, and that you were mistaken. I would believe that you mixed X and Y and a and made Z, where a is the characteristic in the air which I was unaware of prior.
There is the very weak effect that I am more likely to understand how something happens if it is possible than if it is impossible, and things which are possible are more likely to happen than things that are impossible. Therefore I am more likely to be confused in general by things that didn't happen than by things that did- but not more likely to ...
Post will be returning in Main, after a rewrite by the company's writing staff. Citations Galore.