I used to spend years lifting heavy weights, slowly building my strength and endurance, fighting through fatigue and lack of motivation.

A forklift could have lifted all that weight in an instant.

The weight lifting game has changed forever.

The quoted post is also completely wrong - a gen AI program cannot design, run and report experiments. it can certainly write up some text that says that it did...
Of course, it would be nice to accelerate some parts of research and we already do that via automation of some parts of experiments and of data analysis. But inventing the contents of research is the opposite of what we want.

So we definitely need to keep training researchers, not only because doing it yourself is nice and formative, but also because it is the only way to actually do it.