The Koran could be false and Jinn still exist. However, for the Koran to be true, Jinn must exist.
I was listening to book on quantum mechanics in the car the other day, specifically about the various theories created to reconcile QM with relativity. Many of them postulate multiple additional dimensions in our universe which we cannot detect but which contain much of the “dark matter” supposedly necessary to make the equations come out right.
Could spirit creatures (Jinn, angels, demons, call them what you will) exist in these other dimensions and have just about as much trouble interacting with out world as we do with theirs?