Comment by btown

And imagine you had an LLM ingest the entire corpus of comments and discussion threads for all of Postgres' history, and asked it to make a judgment call on the tradeoffs - or even on how to present the tradeoffs for discussion.

How much of its judgment would be driven by the data vs. its own internal knowledge? How much might be driven by old vs. new discussions that might not represent new directions of the project? How much might be driven by over-matching against how bugs in less mission-critical code paths were handled?

There's no way to quantify the answers to these questions. Which is not to say this applies to every problem out there! But human judgment is still a bottleneck for design questions on widely, disparately-used complex systems.