Monocultures can avoid stagnating if they occasionally accept fresh blood from the outside. But hardline stances don’t allow for that. My point is, even if you only want to work with the best of the best, and you’re willing to ignore underprivileged groups with tons of potential, you still need an on-ramp if you want it to be sustainable.

The great engineers don’t graduate from college knowing everything they need to know, nor are they born with that knowledge. It takes time and help from other people to get them there. Even if they were already a top performing engineer at Netflix, that doesn’t mean they can smoothly transition into a role at your company and perform well with zero assistance. The on-ramp matters and has a huge impact on how they will perform. Some people will require more investment than others, but that’s true regardless of whether you stubbornly try to maintain your existing monoculture. And I firmly believe that everyone brings something different to the table. It’s mostly a matter of figuring out what that is for each person.