The title could be dead wrong; the tripling of junior jobs might not be due to the limits of AI, but because of AI increasing the productivity of juniors to that of a mid or senior (or at least 2-3x-ing the output of juniors), thus making hiring juniors an appealing prospect to increase the company's output relative to competitors who aren't hiring in response to AI tech improvements. Hope this is the case and hope it happens across broadly across the economy. While the gutter press fear mongers of job losses, if AI makes the average employee much more useful (even if its via newly created roles), it's conceivable there's a jobs/salaries boom, including among those who 'lose their job' and move into a new one!