>Surely you agree that if you want to argue about the real world, you should know how the real world actually works?
Don't hold your breath on that one.
All we have is science, and science can only be based on observation, which means (at least I believe) that science will always arc toward truth but never be able to grant or contain it in totality.
Science will always be good at providing us just enough information to make some shiny new predictive models that are good enough for now, but that is about the extent of it. Theoretical science, on the other hand, is the art of turning observations into elaborate fairy tales.
so...
No mortal human being will truly know how the world actually works, ever.