How can you know? you can't really. About the best you can do is work with as many people on as many things as possible, in the hopes you come across people ver

How can you know? you can't really. About the best you can do is work with as many people on as many things as possible, in the hopes you come across people very skilled in things you are not, and open up new aspects to your job for you to learn. Consider that fundamentally, even the best person in the world at a given thing may be stuck on a plateau. It does happen occasionally, see female shotputters all starting to cartwheel in 2006 before it became banned. It was legal at any point in time before that, but nobody did, even though each person becoming proficient often quickly broke their personal bests.