>>9525300IME, intelligence has nothing to do with work capacity, or stress handling, or emotional responses. In fact all the procrastinators I know are more intelligent than the median except for myself, I consider myself average AF.
I don't think procrastination helps at all with learning, because any boost you gain from deadlines approaching is going to be less useful than actually paying attention in small bits over longer periods of time. Think about college. In general very few people can remember most about their careers and unless they use that knowledge somehow, it's very easy to lose it in the next five years or so, yet a good procrastinator can deliver a half baked thesis and be able to graduate if he's good with improv and knows enough about his subject. Ask him about it one year later and he's not going to remember anything about it.