I can't say I care much whether future people look like me. Fortunately for me, the things I do care about propagating to future generations are independent of

I can't say I care much whether future people look like me. Fortunately for me, the things I do care about propagating to future generations are independent of bloodlines. I can easily transmit ideas to people with whom I have no common ancestors for 50 generations. (And the ideas I can't transmit? Maybe their lack of fitness should tell me something.)