I get the impression that you mix up science, a sort of nichilist philosphy, literature and little bit of Freud, too
Unfortunatly they do not get along

"Leave out the airfriction's influence for example, would the theory about the dice still be accurate enough? As in, being able to 100% predict what the outcome will be, every time? "

It is not a matter of taste or personal opinions , as you seem to beleive.
There are branches of phisics, math, and enegineering dealing with these issues such as "the theory of errors" or "The theory of modelling"