Comment by squigz

> Making these decisions effectively and responsibly is one of the key characteristics of a senior engineer, which is why it's so interesting that all of those years of intuition are being disrupted.

They're not being disrupted. This is exactly why some people don't trust LLMs to re-invent wheels. It doesn't matter if it can one-shot some code and tests - what matters is that some problems require experience to know what exactly is needed to solve that problem. Libraries enable this experience and knowledge to centralize.

When considering whether inventing something in-house is a good idea vs using a library, "up front dev cost" factors relatively little to me.