This is a really good article but I do kind take issue with the intro, because it's the same assertion I see all over the place :

> Changes land in branches I haven't read. A few weeks ago I realized I had no reliable way to know if any of it was correct: whether it actually does what I said it should do.

> I care about this. I don't want to push slop

They clearly didn't care about that. They only cared about non stop lines of code generation and shipping anything fast. Otherwise they wouldn't need weeks to realise that they weren't reading or testing this code - it's obvious from the outset.

Maybe their approach to this changed and that's fine, but at the beginning they very much did not care and I feel people only keep saying that do because otherwise they'd need to be the one to admit the emperor isn't wearing clothes.