@cicerone imposter,
Economic Theory is an Oxymoron??? Imust immediately contact my nephew's teachers since he is taking a course called Economic Theory. Perhaps the truth is that you are an Oxymoron without the Oxy, of course. You seem to be incredibly dense. You don't appear to understand that every discipline has its shortcomings.
Physics cannot seem to explain ANYTHING about the world since as you say, "There are too many variables that control it" What a bunch of crap!
Physics does explain many things. So does Economics.
You float a strawman when you say that "nobody can formulate a mathematical model that will explain EVERY economic issue. Of course not.But there are models that explain many economic issues.
And, as for "they are all guesses"., what you do not seem to understand is that theories are guesses until verified. Are you really as dense as all that?
Do you think that any model in any discipline would explain EVERY issue. Is that your way to Solipsism?