> but why would anybody choose blue? there is no moral benefit to doing so.
Why? To contribute saving the others who chose blue. How isn't that moral?
If everyone picks red everyone lives, nobody needs saving by picking blue. Picking blue obliges others to pick blue to prevent your death, risking their own life in turn. Red is the moral option.
If everyone picks red everyone lives, nobody needs saving by picking blue. Picking blue obliges others to pick blue to prevent your death, risking their own life in turn. Red is the moral option.