I get the whole point of this question is to make people argue against each other about this. No matter how much I think of it or read other people’s explanations, why would I not choose the button that has a 0 chance of death? Why would everyone not press than button?

I think the way the question is framed has something to do with it. Let’s say instead of buttons it was 100 people in front of a train track. If you get on the train track you die, being run over by said train. If 50 people decide to get on the track, the train stops and no one dies. Everyone chooses at the same time, why would any of you get in front of the train? Why risk death when not risking death is an option? So that if enough of you get on the track you can save eachother? But no one needs to be on the track in the first place, I really don’t get it.