One of the most useful things I've gleaned from pg's essays is learning to think like that. "Will people still be doing X in the same way Y years from now?"

One of the most useful things I've gleaned from pg's essays is learning to think like that. "Will people still be doing X in the same way Y years from now?" If not, what will make that change possible? What will drive it? How can you help it along? Is that a startup idea?