me three years ago: I should donate blood, that would be the virtuous thing to dome two years ago: I shouldn't donate blood, the marginal value of a donation isn't that high and I could be using my time more effectivelyme one year ago: I should maybe donate blood, the marginal value of an hour isn't that high either and if I make a habit of performing altruistic actions altruism will become a more deeply entrenched part of my identityme now: I should donate blood, that would be the virtuous thing to do
worldoptimization