This is a brilliant video and reflect so much of the approach we are developing and teaching about Autism at Empowering Learning.
http://www.youtube.com/watch?v=OR36jrx_L44&feature=em-subs_digest-newavtr-vrecs
I really recommend you watch this short video if you are interested in Autism – look out for the clear visual recall, the withdrawal into self at around 2 years old, the way his parents helped him back into the world, his desire to teach others etc.