For your assumption to work to it must be real world to make any kind of sense, not what if. Metal detectors are straight forward devices that work "in a certain way" and that deserves to be looked at literally. In the same fashion as reformatting a computer, giving a car a tune up, or taking an M-249 apart and putting it back together. If some one said I pull the engine to change the plugs the consensus would be are you insane? I would never speak figurative
ly symbolically about doing those things. They deserve objective, reliable. supportable (literal) words. What it sounds like you are trying to do is bring a type of relativism in by stating I do not know what I am am talking about, WE get that. Conjured......magic works better than that explanation. Next time just state simply Merrill was wrong, or ML did not lie because all the word salad is wasted effort and does nothing in support of your case, (If you were in Moot Court your own team would run you out)
Actually your speculation is a hypothesis, and you need to test it to see if it is true.