I realize, as I get older, what’s more valuable and meaningful than having expert knowledge is to have a perspective. For one, expert knowledge is easy to attain as long as you focus all your time and energy in one specific subject. Almost certainly, without risk, you can attain the title of “expert”. But over time, others will catch up with you as the degree to which you are an “expert” reaches a point of diminishing returns. The rest is about how you are able to connect the dots outside of your own expertise. This becomes more art than science.