autism is caused by the neurons in the brain miss firing, for example, if person a says "hows it going" person b (with autism) thier brain will fire the right neurons but the messege goes to the wrong part of the brain, in this case it might go to the muscle stimulation, causing in a tensing of the left arm or right leg.
miss firing is caused by an overstimulation of the sensors apon a social interaction, when person a aprouches person b, person b will responed with the feelings of anxiety, and also be comptemplating flight or fight response, the brain becomes over stimulated, when the neuron first fires it knows exactly when to send it, but when person be decides to flight, the neorons "bullet" (shall we say) is redirected to another part of the brain, but the "bullet" has a different command and when it is sent to the wrong part of the brain the wrong command is lost.
in the space between person a saying "hello" to person b responding with a "wrong" social interaction, over 2.1 billion miss fires have occured, this causes more anxiety feelings in person b, causing more "wrong" social interactions.
well, i duess tbhis is the longest post, do i get a cookie?