Ok, I didn't claim that starting Yo was easy, or that merely contributing to important problems is harder than starting Yo. I meant that, e.g., solving the ener

Ok, I didn't claim that starting Yo was easy, or that merely contributing to important problems is harder than starting Yo. I meant that, e.g., solving the energy problem is much harder than starting Yo. Basically, those big problems are so big that even if everyone at Yo devoted their careers to one of those problems, the chances of that being the difference in solving it is almost infinitesimal. There have been a lot of brilliant efforts at curing cancer. You could spend a large portion of a brilliant career following up on one lead. Odds are, that lead won't yield a cure. Cancer is that hard.