Please explain how to simplify a biceps machine that has resistance in two degrees of freedom?
Please explain why anyone should give an intercourse. I can do BB or DB curls, Preacher Bench Curls, incline DB curls, strict or cheat curls, hammer curls, reverse grip curls, high reps/low weight, low reps/high weight, Nautilus machine curls, ad nauseam. It ain't rocket science but you know that.
It's up to you to "sell" your ideas, not I nor anyone else here. I find you device to be over-complicated and unnecessary. Apparently a great many others do too.
If that truth hurts perhaps it is because your skin is thin but your skull is thick? You are far from stupid, but you're downright closing in on insufferable arrogance.