I really like his point about how today's environment has made it possible for people to access so many more resources (information, different kinds of food, etc.) than they could throughout most of history; I think that's one of the primary reasons that we've advanced more in the past hundred years than we had in the five hundred before that. I also agree that unsuccessful people have more inflated egos than successful people, but I think it might be because to be successful you need to be liked and supported by others (and big egos often drive people away).