I understand that only time can tell but my 3 year old (almost 4 now) son has been diagnosed with autism and possibly my youngest, my two year old may have it. Anyway, I am going to just focus on my oldest because that's what he was diagnosed with. Anyway, he doesn't talk except a few mumbles and yells "no" every now and then. He doesn't talk but understands what I say to him. I can ask him to do all sorts of things and somethings he has figured out on his own, such as using a screw driver to pry open a locked door. My question is and I am confused about this BUT what makes someone with Asperger's different from someone lower on the spectrum? I think if my son is Autistic he probably has Asperger's. How would I know?

BTW here's a picture of my son Nova, I am talking about. He was about ten months old in this picture.