I just realized that one doesn't even need to invoke game theory for voting to make sense. If there are N voters in an election, the probability of you being the deciding vote is approximately , but the number of people affected by the result is approximately N (probably more since a lot of people don't vote). Thus, the expected number of people you'll affect is
.
Thus, the expected number of people you'll affect is .
Not voting (especially if you tell others you didn't vote) also affects people. You are going to need to subtract this to get the net effects.
Don't let your minds be killed, but I was wondering if there were any existential risk angles to the coming American election (if there isn't, then I'll simply retreat to raw, enjoyable and empty tribalism).
I can see three (quite tenuous) angles:
But these all seem weak factors. So, less wronger, let me know: are the things I should care about in the election, or can I just lie back and enjoy it as a piece of interesting theatre?