God, why are so many people commenting out of their depth today.

> Reduce receptors. This might suggest a _developmental_ or genetic link. Think of this more like "height" or a particular "facial feature" of a person.

No. This isn't how it works at all. Receptor counts are extremely plastic, able to change within a weeks and in some cases hours. This is how you get drug tolerance.

Sure, but they're also 15% lower in people with autism, and shown with a 60-90% heritability.

Supplimentation would not rewrite SHANK3.

You can go to the dentist and get your teeth aligned, but there's a very good chance your children have similar issues.