Oddbean

It depends on what you mean by collective survival and what it is you think I should be responsible for. I'm responsible for my own survival. I may contribute things that help others survive (like my work in emergency medicine, for example), but I don't owe anyone my time in this position. It isn't my responsibility to keep doing it. It is my responsibility to not violate the rights of others to survive, but I'm not ultimately responsible for them. Again, this depends on what you mean. It's a broad question.

No, because I try to live the best life I can for myself already. To do that, I must pursue my own rational self-interest. It just happens that pursuing my own rational self-interest also benefits others. I think that's true in most cases. Otherwise, what you're doing is self-sacrifice and I think that's evil. My purpose is not to make sure that future humans survive. My purpose is to live my one life to the fullest to the extent I can. There is no moral duty beyond that (of course, having children would impose a moral duty, but that is a separate issue and a reason people should choose only after deep reflection). It happens that I value humans greatly and already want them to thrive, regardless of whether or not something more intelligent exists. So to answer, I already am. Humanity itself is already enough for me. I wouldn't forsake it just because something else exists. Read The Virtue of Selfishness by Ayn Rand. She makes a lot of good points on this topic.