Why do people care about the future?

Are they just NPCs or do most people really think they'll live on after death to observe the planet's future? Maybe I'm autistic, but I just can't see why the future, in general, should matter to me or anybody else alive.

But even on this board I see people posting "we should do this or that to improve things in the future" and I'm like "whatever fag" but others actually engage in the conversation as if it matters. What's going on? Can anybody here who cares about the future explain their reasoning?

If you reincarnated as a microbe it would be like incarnating into a different universe. Especially if you incarnated as one of those microbes that lives forever and can survive even space, heat death of universe, big crunch. Maybe that is what nirvana is, achieving reincarnation into a serene microbe that lives for eternity.