Yes. It's said to me all the time. And, I try to listen. I think reddit is home, HN is where we hang out pretending to work. We're expert generalists.

The people I really have a problem with are the autodidacts. It's very hard to argue with somebody convinced of their genius, when it's never been formally tested, or constructed in a methodology.

Staying in lane means asking questions in the other field, make assertions in your own.