(a) The basics
What is autism?
Autism is a lifelong neurodevelopmental difference — a different way of perceiving, processing, and interacting with the world. It shapes how a person communicates, experiences their senses, and relates to other people. Autism is not an illness, and it is not caused by parenting, vaccines, or trauma.
A spectrum
"Spectrum" doesn't mean a line from mild to severe. It means autism shows up in endlessly varied combinations — two autistic people can be very different from each other, with different strengths, quirks, and support needs.
Present from the start
Autism is part of how the brain develops. Traits are usually noticeable in early childhood, though many people — especially women and girls — are recognized much later in life.
Common, not rare
Recent US estimates suggest around 1 in 36 children are autistic, and rates are similar worldwide. You almost certainly know autistic people — whether or not you know they are autistic.
A different, not lesser, wiring
The neurodiversity view
The neurodiversity perspective holds that there is no single "correct" brain. Human minds vary — in attention, sensory processing, and social style — and that variety is part of what makes communities resilient. From this view, most of the difficulty autistic people face comes not from autism itself, but from a world built around one narrow kind of mind: noisy offices, ambiguous social rules, and systems that assume everyone processes information the same way.
Support, then, means two things at once: giving autistic people the specific help they ask for, and adapting environments so fewer accommodations are needed in the first place.