Especially, when I use it for doing marginal charity towards myself. Example: I’m eating a slice of cake. The difference in utility for me between eating 3/4ths of it and all of it is small. So if I leave a 1/4th of it for future-me, the difference in utility for future-me is much larger since it is the difference between having no cake and having some cake.
Robin Hanson’s marginal charity has been quite useful for me.
Especially, when I use it for doing marginal charity towards myself. Example: I’m eating a slice of cake. The difference in utility for me between eating 3/4ths of it and all of it is small. So if I leave a 1/4th of it for future-me, the difference in utility for future-me is much larger since it is the difference between having no cake and having some cake.