That's literally the meaning of the statement "the market can stay irrational longer than you can stay solvent".
Irrational means stupid.
Stupid can win for a very long time, and in the end the "loss" is born mostly by bag-holders.
Irrational means stupid.
Stupid can win for a very long time, and in the end the "loss" is born mostly by bag-holders.
They're not infallible, but modelling them as complete idiots that just happened to get lucky is also... Not really consistent with reality, as far as I can tell. These people might not be good people, but they're good at playing a certain kind of game.