More to the point, we already know the cause of autism; genetics. This isn’t new, it’s not some shocking discovery, it’s been known about for ages. Most of the research at this point is focused on the interconnections between autism, ADHD, dyslexia and dysphraxia, which all show a high propensity for genetic clustering; basically if one person in a family has one of them, the odds of the others being present in the same or other members shoots up massively. That’s really interesting and suggests they might all just be different manifestations of the same underlying genetic condition.

The whole notion that autism has a “cause” is just anti-vaxxer nonsense concocted by a fraud doctor (that’s not an accusation, it’s a fact; he was stripped of his medical license after it was shown that his “research” was a sham, and that he literally tortured innocent children to concoct his fake results) feeding on the insecurities of parents who want someone to blame for their child being different rather than just accepting that sometimes that’s just how people do be.