[iainctduncan]

This is a very insightful comment. I can attest this happens in other fields too, like music. If you compare yourself to how fast the unusual people progress, you'll be depressed. But in talking about this with some music profs who have taught thousands of people, they've said those people have their own challenges (ie. not able to function in society and thus hold down gigs), and very frequently slow learners get there too....but only if they give themselves permission to take the time.