There are 7 billion people on the planet. Most don't go to college. Heck, even of those who do, most don't work on anything interesting. The real trick is to get a lot more people working on problems that matter.
"The real trick is to get a lot more people working on problems that matter." In other words, we can rely on a few people doing important work or we could get more people in the "game." There will be plenty of time off for everyone