Avantgarde devient arriéregarde

Common Sense (CS) is just like a very limited guy that takes ages to understand and integrate in his body of knowledge what other people say. CS is our knowledge tail, it has an huge historical dimension.

We are still digesting the XXth century. Current CS is still back in the begining of the XXth century. Let's say it is in 1905 with Einstein or maybe in 1915 with Ghandi or Freud.

I wonder how will our current avantgarde become Common Sense. How will Common Sense integrate all this?
How will I integrate all this?

Let's see, one page of music, entitled "piano piece for David Tudor":

Composer, Sylvano Bussotti, insisted that the name in the title was not a dedication to the famous avant-garde pianist, but rather an indication of the instrument!