Bill Clinton brings the stupid home on autism

And I thought, whatever his other faults and whatever my disagreements with his politics,, that Bill Clinton was incredibly smart. Apparently I was wrong:

“You do not want to bring your children into the world where we go on with the number of children who are born with autism tripling every 20 years, and nobody knows why,” he said.

Even if the true prevalence of autism is increasing (which is highly debatable), it is not tripling every 20 years–nowhere near it. Again, the apparent increase in prevalence observed over the last two decades can be explained largely by increased awareness and diagnostic substitution. There is no autism epidemic.

The stupid, it burns.