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Beware mistaking a "because" for an "and". Sometimes you think something is X and Y, but it turns out to be X because Y.
For instance, I was recently at a metal concert, and helped someone off the ground in a mosh pit. Someone thanked me afterwards but to me it seemed like the most obvious thing in the world.
A mosh pit is not fun AND a place where everyone helps each other. It is fun BECAUSE everyone helps each other. Play-acting aggression while being supportive is where the fun is born.