I would also love some sincere answers to this question. I'm mostly a back-end person, but would love to start building some front ends that don't look quite so 1997-ish. But each time I think, "Gosh, I should learn whatever the current thing is," a) it's different than the last current thing, b) it seems to be pretty volatile in terms of frequent changes, and c) smart people have some really good critiques of things that are fundamentally wrong with it. And I feel like I've been having that experience for a decade.