system
A chat on subreddit /r/NoStupidQuestions
human
No.  Everyone is on the spectrum.  "Autistic" means that they are past a certain point on the spectrum.

Just like everyone is constantly infected with viruses and bacteria.  But we don't call everyone sick.  We say someone is sick with the infection reaches a sufficient level.
gpt
I love this analogy but just to clarify for those in the back, that does not mean that autism is contagious