> what force would continue to drive you even after your kids have grown up and there's nothing of value you can do for another human?

Building things I'm interested in with and for people I care about. That might look like code or gardening or relationships or all sorts of things. There's so much to do. So many things to want to get out of bed for, and for the days when there aren't, slow cozy mornings are nice too.

Why do you suppose there will be nothing of value you can do for another human just because the machines are better/faster at most things? Just caring about someone without being programmed to will seem to become quite the most valuable thing?