As a layperson, when one learns about Quantum Mechanics, one also learns about the various interpretations of QM-- Many Worlds, Collapse, Pilot Wave theory, etc.
However, as far as I can tell (from google searches), other modern domains of science-- condensed matter physics, fluid mechanics, high energy physics-- don't have interpretations, in the same way that there are for QM.
Is this true? Why does QM garner interpretations of its theory, when other branches don't?
Edit I feel my initial wording was perhaps too parsimonious. I want to flesh out more what I am asking.
Throughout the history of science, various hypotheses and theories are proposed, and experiments are run, specifically designed to disprove a theory. Over time, generally, one theory wins out over the others, and comes to be the commonly accepted theory.
A scientific theory has certain properties, such as that it's falsifiable-- that there is, in theory, some experiment that can be designed such that, if a certain result was measured, it would show that the theory was not true. That a theory is not disproved by such experiments is taken as evidence of its accuracy.
However, I've noticed something peculiar about Quantum Mechanics. In addition to the theory, which has passed many different experiments over the decades, and is generally well-accepted, QM also has "interpretations" or "explanations". Some of these, such as Pilot Wave theory, are falsifiable-- if no Pilot Wave is measured in an experiment, then the theory can be taken to be false, or, not an explanation of the phenomenon.
However, there is an interpretation called Many Worlds, which makes no testable predictions, and no observations can be made of the proposed Worlds. But, this shouldn't be a problem, because it's not a theory, but rather an "interpretation" or "explanation". While the concept of a scientific theory is more strict, in that there are some criteria that a scientific must meet, I have found no similar definition of an interpretation or explanation.
Furthermore, after looking, I haven't even found interpretations at all of other scientific theories! It seems to me that QM is unique in that respect.
I wonder, is it true that only QM has garnered interpretations? Why might this be so, when no other theory has interpretations?