This post discusses a video at this link: https://thehighwire.com/videos/an-autism-miracle/

We do not acknowledge an intelligence that is too fast or too slow, and we don't acknowledge one that is not cooperative.   Instead we acknowledge intelligence that is at the high end of normal intelligence: those who take at least 30 minutes to finish the test and get close to 80 percent of the questions right.

This episode is also available as a blog post: http://hypothesis-discovery.com/2021/05/07/intelligence-non-speaker-or-autism/