R-whatever, you miss the point as so many others, the experts of any given time were overthrown by what were perceived as cranks in their day, as is necessarily so, which were only in hindsight recognized as correct. Galileo was the crank and all those who taught the sun revolved around the earth were the experts. Darwin was the crank and all those who believed in instant Creation were the experts. If you only exercised that over-used and under-defined concept "logic" you might have seen this. As to under-defined science, I've defined it many times, it's really not very complicated, science, which is to say empirical science, rests on experiment and observation. In turntable terms, this means comparison and listening. Too complicated for you? Here's a litle primer from the days when the modern concept of science (as opposed to blowing wind) was being developed: "There is one science, he says, more perfect than others, which is needed to verify the others, the science of experiment, surpassing the certainty, however strong the reasoning, unless experiment be added to test their conclusions. Experimental science alone is able to ascertain what can be effected by nature, what by art, what by fraud. It alone teaches how to judge all the follies of the magicians, just as logic can be used to test argument." (Robert Bacon) In modern terms, take one Lenco and one high-end belt-drive and place them in the same system, plug them in, and listen and compare. Sorry, I can't make it any simpler than this. Is there a right or a wrong? Would you say that it is wrong to assert that a Galibier is better than a Project Xpression? Is there no difference in quality, no superior system? No? Then I think I'll go shovel some coal in my steam-driven 10-ton car, "combustion engine", kooky idea!