At this point, I truly do not believe there is anything that could happen that would convince HN that LLMs reduce demand for engineering labor hours.
Because the data shows exactly the opposite?
https://www.businessinsider.com/ai-isnt-killing-software-cod...
He's actually agreeing it reduces the need for engineers to produce the same level of output as now. He's making the argument that companies would then desire more output to capitalize on additional ideas/projects. I could see it going either way, but likely demand will fall.