Based on what I've read lately, my consensus perspective is that 80% of what people consider autism is actually just the western diet's effect on normal brain chemistry.
Their comment was against the guidelines and I've replied to it to explain how, but it's still not OK to comment like this on HN, no matter what it's in reply to. Please take a moment to remind yourself of the guidelines and make an effort to observe them when participating here. https://news.ycombinator.com/newsguidelines.html