I went to a concert and a screening of Rocky Horror, and I was reminded how much fun it is to be part of a group of primates yelling something together.
You know how great it is when people spontaneously start singing the same thing? Primates saying things together.
Movies with callbacks? Primates yelling things together.
Protest slogans? Group chants? Ritual dances? Primates yelling things together.
I think that a lot of the reason people like football and whatnot, other than the whole tribal warfare substitute stuff, is that they like being part of a group of primates yelling things together.
It just makes me feel so energetic and prosocial afterwards. I wonder if it can be used for motivation.