H henry: What makes a potential impact significant and real in our heads? This question becomes particularly interesting in the sphere of politics. For example, should a leader choose to prevent a small chance of nuclear war or an issue with a lower magnitude, but a much higher chance of happening, like pollution? I think that's one thing that's so hard about having sponsibility, whether you're a politician or what not, is you have to worry about both. And so yes, it's worth investing a lot of time and energy in modulating against low probability, but really high impact events like nuclear wark. But you also need to teach people that the small choices you make every day