There are legitimately valuable talks, like this one. As a format it's very good to deliver specialised knowledge in a concise, impactful way thing is you need to pay attention that people actually have something to say -- and that there's a good reason to put it in a concise format for a general audience. That's rarer than you think, thus you get tons of slop and platitudes. And TBH the only reason I know that talk exists is because SPJ is giving it, I was already over TED talks in general at that point.