The closest view to person-affecting ethics that makes any sense to me is something like “it’s hard for future lives to have much positive value except when seen as part of an organic four-dimensional human civilization, like notes in a piece of music, and individual survival is a special case of this”. (If this were true, I’m not sure if it would limit the number of people whose lives could eventually have much positive value. I’m specifying positive value here because it seems plausible that there’s an asymmetry between positive and negative, like how a good note outside a musical piece can be only slightly beautiful and nails on chalkboard outside a musical piece can still be very ugly.)
The closest view to person-affecting ethics that makes any sense to me is something like “it’s hard for future lives to have much positive value except when seen as part of an organic four-dimensional human civilization, like notes in a piece of music, and individual survival is a special case of this”. (If this were true, I’m not sure if it would limit the number of people whose lives could eventually have much positive value. I’m specifying positive value here because it seems plausible that there’s an asymmetry between positive and negative, like how a good note outside a musical piece can be only slightly beautiful and nails on chalkboard outside a musical piece can still be very ugly.)