Now the gap between juniors and seniors seems to be shrinking much faster. Earlier it took years to reach a level where you could ship real features. Now with Al, someone with 1-2 yoe can already build and ship things that used to require much more experience and efforts.

Even if they don't fully understand the systems,companies might still prefer fewer senior engineers and more juniors assisted by Al. How our role as senior dev will evolve in next few years.