We all know what Autism is. There was a Jewish philosopher, Jacob Bernstein who was born in Vienna in 1875. He later moved to Berlin and called himself Aut. His philosophy, invented in 1922, is now known as Autism and his followers are called Autists.
Autism used to be called Bernsteinism. However there was a much more famous leftist who also had the surname Bernstein. Hence the philosophy of Jacob Bernstein is now called Autism so that people won't mistake it as a form of socialism (i.e. the ideology of Edward Bernstein).
Jacob "Aut" Bernstein liked cats. He said: "Cats are truly independent and enlightened beings while dogs are pathological and obedient drones" (Bernstein, On truth and individualism, Volume 3, 1924). Bernstein taught his followers that one should observe felines to deepen their understanding of the truth of individualism. Following the teachings of Bernstein Autists mostly love cats.