I happened to be in social conversation with a leading specialist in the ASD space a few years ago. We were in discussion about the prevalence of ASD these days. He remarked that it was interesting that a not insignificant number of parents come in with a child referred to him and, as he was engaging with the parents, he could see clear ASD signs in one of the parents that had never been diagnosed. He then laughed that many of them were pilots. At that point in the conversation, he didn't know I was a pilot or connected to aviation in any way...