"Autism comes from the Greek word αὐτός (autós), meaning self. Because the word refers to egocentric thinking, Bleuler defined autism as "autistic withdrawal of the patient to his fantasies, against which any influence from outside becomes an intolerable disturbance."This definition would manifest as characteristics of autism such as obsession with small details, or an inability to stray from a routine."
and
"The manifestations of autism cover a wide spectrum, ranging from individuals with severe impairments—who may be silent, mentally disabled, and locked into hand flapping and rocking—to high functioning individuals who may have active but distinctly odd social approaches, narrowly focused interests, and verbose, pedantic communication"
were two interesting things i read and made a note of.