How horrible the answers below...my son with autism is far from lonely. I have never met a happier child and he is extremely bright. You cannot classify "what you get from autism" and place it generally over an entire population. It is different for every person. Some of the information below may be the case for some severly affected individuals or those that have been institutionalized but that is not the case for the many children I have encountered with autism.
(by Dane Youssef)
A desire to swear, a lot of frustrations with ordinary life, weird ticks and spasms, problems connecting with the rest of the world, a discomfort with loud noises and a fascination with other noises, an interest in bizarre trivia and data, endless struggles with about 90% of this living mortal world.
And all the above... this is just barely scratching the surface.