Why is this simplistic economic equation MV=PQ so popular, even among many bitcoiners ? It's pseudo science in my opinion.
Take care not to rob "pseudoscience" of its meaning.
It's actually a tautology, but can be analogized to the ideal gas law.

Aren't we just in these days worldwide witnessing that the equation is rather stupid and doesn't fit? It is pseudo science (and wrong at that even).
What does it not fit?