Thank you Saima for a lovely and much-needed summary of Darwin’s big idea. It is shocking, and lamentable, that even after so many years it continues to be the case that most US citizens have no idea whatsoever about evolution, and the few that have heard about it imagine it to be all about “dominance of the strongest” which is a grotesque misapprehension. Even sadder is the fact that baroque nonsense like Freudian theory continues to be practiced despite being evolutionarily impossible, much as though one could find one or two physicists selling anti-gravity chewing gum to the gullible on street corners. And perhaps saddest of all are those who simply don’t understand that evolution (which is a proven fact) is incompatible with fantasies about magical gods and goblins.