Why can't the question, "what is art? " ever really be answered? ..

Art is considered many things...… from music to paintings. This is what everyone knows art as. But really art is what you end up with when your struck with an amazing idea or you see things from a different perspective and notice that it makes something else. The reason why the question "what is art" cannot be answered is because we don't really know what art is ourselves, our definition of art expands everyday when something new is noticed. I'm only in high school so maybe my answer is stupid and doesn't really help or maybe it will help. But seeing that no one else has answered your question, I thought I'd give my opinion. Hope this helps a little :) 

Art is a subjective, so there is no one definition. it's up to each person to decide for him- or herself what art is.

Iwould say 2: rhythm and repetition