I can't find the article now, but an evolutionary-psychology noticed that the "cooties" concept seems to exist across all cultures (though obviously not always given the name "cooties"), and furthermore noticed that children often don't consider their siblings to have cooties. I.e. boys will feel that most girls have cooties, but not their sisters.
The psychologist offered this as an explanation: We evolved to find the people we grow up with to be not sexually attractive. This is a mechanism to avoid incest (which can result in genetic problems). However, if you live in a society, you don't want to find people who grow up with you, but who do not share genes with you, to be sexually unattractive (or else you might find no one within your whole society attractive), and thus this "cooties" sensation was placed by evolution so that we can avoid people of the opposite sex during this critical period so that later on, as adults, we may be sexually attracted to them.
That "explanation" sounds awfully just-so-story to me.
What do you believe that most people on this site don't?
I'm especially looking for things that you wouldn't even mention if someone wasn't explicitly asking for them. Stuff you're not even comfortable writing under your own name. Making a one-shot account here is very easy, go ahead and do that if you don't want to tarnish your image.
I think a big problem with a "community" dedicated to being less wrong is that it will make people more concerned about APPEARING less wrong. The biggest part of my intellectual journey so far has been the acquisition of new and startling knowledge, and that knowledge doesn't seem likely to turn up here in the conditions that currently exist.
So please, tell me the crazy things you're otherwise afraid to say. I want to know them, because they might be true.