I see what you are saying, but I guess I just don't accept that definition of parsimony because it includes explanatory power as an input into the value of pars

I see what you are saying, but I guess I just don't accept that definition of parsimony because it includes explanatory power as an input into the value of parsimony. In just about every context I've encountered the concept, it has been used as a means of distinguishing between theories of equal explanatory power.