autism rights activists are sometimes called neurodiversity activists. neurodiversity is a word for how everyone's brains are different. autistic people have different brains to people who do not have autism. people who do not have autism are called neurotypical people. the word 'neurodiversity' is preferred to 'autism' because it is not saying that autism is a medical condition. 'neurotypical' is said instead of 'normal' because people think that normal means better.