art is subjective, yes, but as such it is subject to objective definable criteria which enables the expression of subjective thoughts feelings and emotions to be communicated to another.

For communication to occur there has to be an agreed system of signals which can represent identifiable feelings in both the artist and the audience. Duchamp warned us that art was becoming too subjective by exhibiting his pissoir, and in danger of failing in it's principle aim: to communicate.

When the message becomes unclear and misunderstood, or worse unintelligble then nothing has happened, and the great fig hasn't been moved on. Art must be allowed ultimate freedom, so no act should be considered 'wrong', merely 'working' or 'not working' - when 'working' means the successful communication of an idea, thought or emotion.