The focus here is on entirely the wrong thing. It is the development environment provided by the company that enables above average developers to surge into hyper productivity. Good programming practices. Competently prepared requirements. A collegial atmosphere that encourages frank and open communication between departments.
Searching for 10X developers is like looking for a silver bullet. Silver bullets do exist in the real world but ask a shooter whether they provide results any better than the common kind of ammo. Mythical stories can be fun but in the real world we have real work to to, real problems to solve, and while you can find shortcuts generally you don't find them by looking from them. But dive into the messy chaos of creating order out of nothing, and from time to time you will come across real honest to goodness shortcut opportunities that may provide up to a 10X increase in productivity. Use them if you can, but don't waste a lot of energy in chasing them.
Also, the idea of a 10X rocket scientist is rather glamourous. But the fact is that there are real opportunities for productivity improvements that are in the boring details, slogging through improvements in processes, making small incremental improvements continuously and consistently. There is more to learn from refactoring than from chasing clouds.