Fundamentally I feel that there is as much difference between the stage and the films as between a piano and a violin. Normally you can't become a virtuoso in both. ↗
The attraction of the virtuoso for the public is very like that of the circus for the crowd. There is always the hope that something dangerous will happen. ↗
When a pianist sits down and does a virtuoso performance he is in a technical sense transmitting more information to a machine than any other human activity involving machinery allows. ↗