What I have seen with such developers is that they can jump into a system they have no idea about and ramp up faster than most people. I don't believe that everyone can be a 10x, I also don't believe that everyone that can be a 10x is even going to reach that field. From what I have seen, these folks are the sorts that enjoy working on non user centric app. They hate those ambiguities, so you might find them in security, or working on compilers, networking and lower level sort of codes where it's possible to conquer whatever demon that will arise from the code. It's almost impossible to WIN in user centric app where what's correct is subjective.