We tend to think of things we want right now, or in the near future. Yesterday I was watering the garden (watering in the compost really) and I began thinking about what I want 10,000 years from now.
Besides the fact that I would like to be immortal and actually see the world in 10,000 years, I would like to see seeds from the plants I’m tending now. Imagine seeing the new seedlings growing from their great-great-great-grandparents, which you watered 10,000 years ago. I like to think that I made a difference, however slight. Maybe I will never have fame and fortune, but there will be trees here which I helped grow.
At least, there should be. If not for that band of rogue aliens which come to Earth in 8462 and torch the whole place, for no reason. Just some freak road rage incident.