Rain man, Kim Peek, was an idiot Savant, although highly intelligent in Math and Memory, has the personality unlike most humans, need help in day to day activities. I really doubt if these Idiot Savants could trade. There have been like 100 Savants in the world in past 100 years and one set of twins.
Autistic Savant Made Famous by ‘Rain Man’ Dies — What Is New... : Neurology Today (lww.com)
Cool article, thanks for posting. Had no idea.