Keggy what do you have that indicates how long it's been around...seriously, I've only read of it being a relatively new thing...mental retardation and things like psychosis have been around for a long time, but autism as a pervasive developmental disorder with all the stereotypical traights: head banging, lining things up, not speaking, eye contact....all that I assume we are seperting out here, right?

I'll see if I can find something...but would love to see what you've got too...

I was going to propose coming up with our own list of things that could also be plausible as they also 'came to be' at roughly the same time...

Like Mili points out microwaves, I bet preservatives are a good one too...I'm sure we could come up with a good list to toss at this guy along with a few reasons why his theory is absolute hooey!