Autism is genetic but we cannot do genetic testing and prove that you have autism. Seems like a very circular reasoning.
EDIT: they have a FAQ about it: https://www.autism.org.uk/advice-and-guidance/about-autism/w...
Here's one: even if it were genetic, there could be triggering environmental factors that trigger the onset of autism (I'm just giving a hypothetical example, not making a claim here).
Autism is also multiple things.
That may provide some insight about how there is not a "single `autism gene'" and how they hedged a bunch of these statements with "most" or "usually".
Maybe some day when we as a species understand brains better, some people will get a more precise label than "on the autism spectrum".
la6479•1h ago
contingencies•8m ago
These are viable for the population as a whole, not just people with autism or identified learning difficulties.
VCFundedGenYer•5m ago
scottyah•2m ago
thih9•54s ago