GymRat, that "scientific mumbo-jumbo" is how your body adapts to stimulus, and it has absolutely nothing to do with machines v., free-weights. Not sure what you are trying to drive at there. You were arguing against avoiding adaptation, which is one of the simplest and most legitimate premises of exercise physiology as a whole. If you allow your body to adapt, growth ceases - period. In the simplest terminology possible, growth is another term for disequillibrium: your body attempting to return to normal after the introduction of a stimulus. If you constantly move towards "normal" by using the exact same exercises you will not grow. You are arguing for this, and I gave you the scientific reasons why that does not make any sense whatsoever. That is in the simplest language I can give it to you.
For reference, major compound lifts continue to deliver results re: strength due to neuromuscular adaptations that occur as a result of massive and simultaneous muscle recruitment. Great for functional strength, not so great for lean mass development and shape.
Also, nowhere did I state machines are superior to free-weights; I think you are confused on what the thrust of my argument is. I feel like I am being Punk'd or something. Where is Ashton!?