More than once, I've had a conversation roughly similar to the following:
Me: "I want to live forever, of course; but even if I don't, I'd still like for some sort of sapience to keep on living."
Someone else: "Yeah, so? You'll be dead, so how/why should you care?"
I've tried describing how it's the me-of-the-present who's caring about which sort of future comes to pass, but I haven't been able to do so in a way that doesn't fall flat. Might you have any thoughts on how to better frame this idea?
I am interested in the discussion, so I am going to roleplay such a person. I'll call him "Bob".
Bob does not intend to have children, for a variety of reasons. He understands that some people do want children, and, while he believes that they are wrong, he does agree that wills are sensible tools to employ once a person commits to having children.
Bob wants to maximize his own utility. He recognizes that certain actions give him "warm fuzzies"; but he also understands that his brain is full of biases, and that not all actions that produce "warm fuzzies" are in his long-term interest. Bob has been working diligently to erdaicate as many of his biases as is reasonably practical.
So, please convince Bob that caring about what happens after he's dead is important.
If Bob really doesn't care, then there's not much to say. I mean, who am I to tell Bob what Bob should want? That said, I may be able to explain to Bob why I care, and he might accept or at least understand my reasoning. Would that satisfy?