Techniques are nothing more than "physical movements." For example, can you do the "Michael Jordan" slam dunking technique? Of course you can, almost everyone can! Though it may not look exactly like his signature dunk, it would be the MJ dunking technique!
Now, the real questions are, "Can you propel your body above the rim like Mr. Jordan can?" and, "Can you keep your body above the rim for as long as he can?"
The ability to propel your body above the rim requires a certain amount of athleticism (read "physical attributes"). If you do not have these physical attributes, does it even matter if you can do a technique like MJ?
For years, we've heard martial arts masters tell us, "It's all about technique!" And, we've bought and paid for it with our blood, sweat and bank accounts.
Most of us come to the conclusion (that technique alone will not get the job done) only after we've been training for "X" amount of years and then some athletic guy walks in off the street and gives us a good run for our money. Suddenly our technique world has been shattered. We think to ourselves, "I don't get it. I've been training for 3 years and this guy, who has no training, walks in off the street and hangs with me for five minutes. Something must be wrong!"
For those who don't know any better (or for those who refuse to let go of the myth), they will repeatedly ask question after quesion, "What technique do I do when the guy does this?" or " What technique do I do with the big strong guys?" What makes matter worse is the big guy keeps coming to group classes and then you find out that he is also taking private lessons.
I know all of this because I've been there before, and I have heard it amongst my students. Plus, I have guys who train with me from other schools who take private lessons JUST TO BEAT the big guys!
Mental knowledge of physical movements will never equal a skill. Only time, effort, patience, discipline and persistence will!!