my mind doesnt have too much trouble with it. excellence is a marriage of skills and circumstances, time and space. the beatles were like some of my favorite doctors. they not only had decent skills and instinct, they had access to state of the art studios, etc. they were able to take their pencil sketches and turn them into dazzling technicolor motion pictures. thus SgtPLHCB
IOW, its not a matter of the beatles being the ONLY ones who could have done that, they just happened to be prepared for opportunity - the key to every success.