One problem is that many problems seem easier than they are, and you only find out that they're hard by failing to solve them. I have often wondered how many un

One problem is that many problems seem easier than they are, and you only find out that they're hard by failing to solve them. I have often wondered how many unremarkable foundational results would be considered major accomplishments if they didn't have the mis(?)fortune of being found by the first person who tried.