In all fairness to them, "simulating many stuff interacting with each other" is the poster child of OO. It's just, that, well, it's not how CPU works.

Then again, at some point we had "Lisp machines", maybe some day there will be a computer architecture where memory / computations patterns are adapted to massive simulation - rather than shoehorning on existing architecture.

And those will fail just as miserably as Lisp machines.