It's a double-edged sword. AI agents don't have a long-term context window that gets better over time. People who employ AI agents today instead of juniors are going to find themselves in another local maximum: yes, the AI agent will make you more productive today compared to a junior, but (as the tech stands today) you will never be able to promote an AI agent to senior or staff, and you will not get to hire out an army of thousands of engineers that lets you deliver the sheer throughput that FAANG / Fortune 500 are capable of. You will be stuck at some shorter level of feature-delivery capacity.