Who ever said “everything that distinguishes the human line from the other great apes can be explained by a single event”? Certainly not me. All I’ve been doing is reacting to other editors who continually say there are better explanations than the AAH to explain human evolution. Alright, but what are these explanations? Whenever I ask I get nothing. And of course the AAH is falsifiable. You're getting confused because it's never been falsified (unlike the savanna theory, which has, and which proves that broad evolutionary theories can be).