I remember HN had a repeating popular post on the the most important data structures. They are all the basic ones that a first-year college student can learn. The youngest one was skiplist, which was invented in 1990. When I was a student, my class literally read the original paper and implemented the data structure and analyzed the complexity in our first data structure course.
This seems imply that the software engineering as a profession has been quite mature and saturated for a while, to the point that a model can predict most of the output. Yes, yes, I know there are thousands of advanced algorithms and amazing systems in production. It's just that the market does not need millions of engineers for such advanced skills.
Unless we get yet another new domain like cloud or like internet, I'm afraid the core value of software engineers: trailblazing for new business scenarios, will continue diminishing and being marginalized by AI. As a result, we get way less demand for our job, and many of us will either take a lower pay, or lose our jobs for extended time.