i have a question that is similar to my earlier thread about defining a virtuoso
everyone says MAH has one fo the best techniques in history.
some aspects of technique of course are controlling legato, articulations, dynamics, etc
but in the area of pure speed, to me all concert, 'virtuoso' pianists i have held in similar regard because even when one does not play a fast passage as fast as another i assume its because he doesnt want to not because he cant
but im realizing this may not be true
so my question is, how much faster do you think MAH can play a particular octave passage, run,etc than your everyday recording pianist (e.g. serkin)