Depends what the mods think.
My son can tell you all sorts of specific things in minute detail... for example, today after church he absolutely gobsmacked a couple of old ladies (not literally) by informing them how he could tell that Oliver Cromwell had been in the area by the condition of our Saxon church. He then walked round it, showing them where the cromwellian soldiers had done the damage, then pointed out where the recividist Catholics had later on tried to put their secret marks in the area. It was a fascinating, and incredibly informative lecture from a thirteen year old. Since we got back, I've been online checking his resources, and yes... he's spot on.
That's just one of his interests (he's massively into history, but also human biology, astronomy, and sci fi.) I'm not sure if a near photographic memory and a high IQ should mean you're asperger's or not. His diagnoses isn't based on just that... but you have to admit, when our kids get going, they can be pretty cool.