I guess anyone can interpret it however they want. If you’re challenging yourself in your career, you will eventually find yourself in a position where you legitimately don’t know what you’re doing, and people are depending on you to figure it out. Early in my career I thrived in these situations, because they mirrored my experiences in college. Later in my career, the problems got bigger and I found myself wondering if I would ever figure these things out, saying to myself, maybe I’m actually not smart enough, maybe I took the wrong career path? But, if you keep your composure, read the docs, ask the right people for help, you figure it out and move on. I always assumed that’s what people meant. Seems like young people today have much more anxiety that we used to though, so maybe the definition has shifted.