Autism is simply a specialized way of thinking and interacting with the world. It is characterized by perpetual hyperfocus – i.e., intense mental concentration fixated on one thought pattern at at time, to the exclusion of everything else, including one’s own feelings.
Having an autistic brain is analogous to living 24/7 in an intellectual laboratory from which emotional and social distractions are prohibited from entering. This mental isolation is caused by an inherent neurophysiological idiosyncrasy in how the brain processes information.
Autism is currently considered to be a disorder, i.e., a pathological condition. It most definitely is not. Michelangelo, Mozart, Darwin, Jefferson, Edison, Tesla, and Einstein were autistic and can hardly be said to have been suffering from any mental pathology.