I keep seeing this argument for a bunch of different industries. Nobody appears to have an answer for where all these more senior people are going to come from

I keep seeing this argument for a bunch of different industries. Nobody appears to have an answer for where all these more senior people are going to come from when we're replacing the juniors with an LLM. People don't magically become senior engineers, they need to get experience of the basics. Traditionally that's done by being hired as a junior engineer and doing a few years of fairly dull work under the supervision of the more senior engineers, who gradually prod you into doing things well. Bootcamps have been somewhat filling the ever increasing void for junior positions to some extent (in the process making the barrier to entry into the industry higher for people who can't afford to literally pay for the junior roles that used to pay them), but there's still a chasm between someone fresh out of a bootcamp program and a developer who you can let loose on a project unsupervised.