solipsism

But in the age of the iPod, where solipsism has been made sophisticated, they are more right than anyone ever imagined.

Of course, when an entire throng is trying to rise above itself, an epidemic of free-form vulgarity and solipsism ensues.

I realize now that I may have been falling into the trap of solipsism, “who watches the quad,” et cetera, type of thing.

This theory is also called Subjective Idealism or Solipsism.