Its very limiting that a big set of very hard problems that we have just lying around are Erdos problems. Don't get me wrong， they are quite cool， but we really need hard problems repositories for many fields， including areas that have less specified answers & require judges.

Yes， math is the easiest field in which to do verified work， but it is also an area where direct implications of increasing AI ability on everyday life are less clear. We need more types of problems （complex engineering problems， large data sets in economics， physics， biology）， for people to turn AI loose on， including speciations of how to evaluate them.