What is genuinely worth learning right now, and what is noise?

Every week there is a new thing you are told you must learn or fall behind. Most of it will not matter in two years. The more useful question is narrower: what have you learned in the last year that has actually changed what you get paid or what you get hired for? Not what was interesting. What moved something. And the reverse, which is more useful and less often said: what did you spend real time on that turned out to be worth nothing?