"Most economists" never believed that. Lots of people in finance did, sure, but they're not economists.
https://mises.org/library/ben-bernanke-was-incredibly-uncann...
What I don't understand is how people find it very difficult to admit that economists can be wrong sometimes and that their word is not gospel.
I’ve said in other parts of the thread that economists can, in fact, be wrong sometimes. I just find the people making completely unjustifiable assertions about the economy, while simultaneously castigating the economics profession as some cabal of out-of-touch elites who can’t be trusted, unconvincing, when I know that the vast majority of economists are simply researchers trying to understand the world and how to improve it.