I’ve been programming for almost 30 years, know most of the things on his list, but a few years ago I got an email from a guy interested in one of my apps and h

I’ve been programming for almost 30 years, know most of the things on his list, but a few years ago I got an email from a guy interested in one of my apps and he told me about the apps he built and how much money he was making. He had nearly zero programming experience or skill, but his apps were more successful than mine. My point is that knowing 20 different programming languages did not make me more successful or better. This guy kind of sort of knew one language and was crushing me in sales. On an unrelated note, I knew a guy that knew every new tool and language under the sun. Was always learning the latest thing. Terrible engineer —- everything too complicated and abstracted. Hard to follow, hard to work with. I don’t believe knowing more necissarily makes for a better enginner at all.