[Gluber]

I agree with your sentiment. But those things exist (not that that validates the authors argument) and I still shake in terror when during covid I was asked to take a look at a virus spread simulation (cellular automaton) that was written by a university professor and his postdoc team for software engineering at a large university that modeled evey cell in a 100k x 100k grid as a class which used virtual methods for every computation between cells. Rewrote that in Cuda and normal buffers/ arrays.. and an epoch ran in milliseconds instead of hours.

[phtrivier]

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.