Then artists may discover that art defined in this way is only part of what is considered as art nowadays. It is quite curious - is it half of it? 1%? 75%? 0.1%

Then artists may discover that art defined in this way is only part of what is considered as art nowadays. It is quite curious - is it half of it? 1%? 75%? 0.1%? Also: > Artists are the people who define art, much as scientists get to define what science is. Not really, that is not how language works. As far as language goes, it is defined by more wider community. See poor cryptologists and meaning of word "crypto", one more victim of other bunch of events.