You didn't read carefully my post!
I said "Eventually, over time, if you PRACTICE THE RIGHT THINGS ENOUGH TIMES....."
I think that guitar hero requires learned technique and skill...and that no two players go at it the exact same way...just like golf..though in a general way they all look the same as they play.
I think the Buddhists are dead on when they say that anything you focus on in your life becomes stronger...hence my son rising to expert level vs me only achieving medium level. My son simply exerted more focus in a shorter period of time.
I think there is a frame of reference for correct motion in a golf swing that is absolute (works every time and is universal to all good swings)and can be learned by anyone who chooses to. It is absolute enough in that it is found in all great swings, yet free enough so as to accommodate for all manner of body types, playing styles and swing methods.
I think that the mainstream golf instruction community ( mainly PGA and golf pubs)has duped the golf community at large into buying into the fact that the golf swing is complex (re-read your post again - it comes through even in some of what you say)...when really, as Hogan said in Five Fundamentals....mastery of just a few things is all that is required to have a good swing. The golf swing is a learned manual dexterity just like anything else. Easy to prove this - I doubt there is ANYONE that posts on this board that is as bad today as they were the first months they picked up a club. Why any of us haven't moved beyond where we are currently at is only because we have chosen not too.
I think mainstream golf instruction for the most part has ignored the science of how humans learn that exists outside of golf. The way we learn best is the way we learn best...that doesn't change because it is a golf swing!
I think way to little attention has been placed on the mental emotional aspect of the game for Joe average golfer...though in recent years there has been much more focus on this by tour pros...but even that falls short of the mark most of the time.
I think you are dead on that with golf there is a great variety of things that work "on some level", and that most all players are looking for that quixotic one thing that works, and like the song says they are "looking for love in the wrong places". As evidence for that look no further than this very forum.
I think any human of average intelligence and physical ability, given enough time can figure out most anything. That's what makes us human. So yes any hack can become a good player.
But I think there are better ways than others to go about figuring things out...and that if one avails himself of the better ways, it will not take any hack anywhere close to eight hours a day to become a "good player".
I think all analogies breakdown, and that you learning golf is particularly prone to the "paralysis by analysis" syndrome.
I think some of the wisest words ever written about learning the golf swing, often quoted by Moe were those of Bertholy in his "Ode to Golf":
"A man may lie, cheat and steal for gain, but these will never gain the golf swing. To gain the golf swing, A MAN MUST WORK."
In learning the golf swing, we should "work smarter, not harder!"