patrickjd
Worse yet, increasing the quantity of books while simultaneously decreasing the quality just makes the situation worse for readers: more slop to filter out.
As a side note, this is what I keep pointing out when people talk about code generated by LLMs. As an activity, this is just one thing that programmers do.
I think the answer to your question (a good question indeed) is "both", or rather to balance development of both capabilities. The decision of how to spend time won't be a single decision but is repeated often through the years. The Staff+ engineers with whom I work _mostly_ excel at both aspects, with a small handful being technical specialists. I haven't encountered any who have deep domain knowledge but limited technical depth.
(edit: formatting)
Maybe even with very sensible titles like 'Junior Prime Minister'.