Why do atheists make up 63% of people diagnosed with Autism Spectrum Disorder?

If I had to guess it's probably a mixture of things:
  1. They don't feel the same urge to socially conform to their peer group, which makes them less likely to adopt religious beliefs.
  2. Their more analytical approach to thinking about things makes them focus on contradictions or inconsistencies in religious dogma that most people would be willing to gloss over.
  3. Religion requires a level of abstract thought (i.e believing in something you can't physically see) that autists lack.
Also, just from personal experience, autists who are religious tend to be really into it and become super-devout. They're very much "all or nothing" when it comes to things like this.
 
Given the high level of mathematical ability among the autistic population, I suspect that Autism leads to a tendency for Materialism, in the philosophical sense:
Materialism - the view that all facts are causally dependent upon physical processes, or even reducible to them.
This would lead autists to want to quantify every aspect of the world in terms of mathematical values or relation to physical values, and anything not quantifiable (like human emotional bonds, religious experiences, moral beliefs, etc) become harder to grasp as part of the real world.
 
Given the high level of mathematical ability among the autistic population, I suspect that Autism leads to a tendency for Materialism, in the philosophical sense:

This would lead autists to want to quantify every aspect of the world in terms of mathematical values or relation to physical values, and anything not quantifiable (like human emotional bonds, religious experiences, moral beliefs, etc) become harder to grasp as part of the real world.
I think we're saying the same thing. It's just characteristics of an autistic brain.
 
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