> it's hard to mentally model code you didn't write. Back when I learned to code, I was told never to copy-and-paste, even from my own code. It wasn't that it

> it's hard to mentally model code you didn't write. Back when I learned to code, I was told never to copy-and-paste, even from my own code. It wasn't that it wouldn't save time, but that typing the stuff would force me to think about and understand it. Throwing slop at walls and yelling "why error?! fix!!" if it doesn't work is good enough until it isn't, at which point it fails very badly, and no one has the knowledge to fix it.