I would feel more inclined to continue to "learn" (read: pick up shiny new frameworks, not actually learn new fundamentals) if the new stuff wasn't just rehashe

I would feel more inclined to continue to "learn" (read: pick up shiny new frameworks, not actually learn new fundamentals) if the new stuff wasn't just rehashed old stuff. If I need to pick something up, fine, that's trivial, but "learning" for the sake of "learning" is best left to the juniors.