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Economics is nothing like physics. Physics seeks to discover the real laws that govern our universe, our very creation. Economists just argue endlessly and produce models, none of which work very well.
You never hung out with phys. grads.

At least economics geeks don't add handfuls of dimensions &
creative fudge factors constants to make their models jive.
Umm... They do.
But we're digressing, the strength of any scientific theory is that ultimately, it has to be testable (make predictions).
Some economic theories do, but other have been proven to be flat out wrong and should be
discarded....