Comment by ygjb

I think it's generally accepted that at a high level being in the top quartile is considered very good. Not excellent. Not unicorn. Just very good.

Beyond that, it's not about becoming very good at two different, completely orthogonal things, it's about becoming very good at two things that are complementary in some way that is of value to others. Being good at PacMan and Bouldering is only particularly valuable if you are competing for opportunities to participate in a hypothetical mixed reality video game, or perhaps a very niche streaming channel. Being the top quartile of embedded c code, and flora identification could result in building software/hardware tools to identify flora, which is a niche that currently has multiple competing products that are high value to those interested.