Some might find this question absurd but, as someone who knows next to nothing about physics, I am basing my question on various internet discussions that I've read. I get the impression that some physicists (a small minority, perhaps?) on the experimental side of the discipline have called in to question the validity of much of theoretical physics. Maybe that seems obvious but, again, I know little about Physics. It seems as if the theorist concerns himself with constructing models that-- while logically consistent--can not be subject to falsification. I.e., he's potentially dealing with imaginary phenomena. Is this an accurate description of the field?