The percept takes priority of the concept.

Einstein pronounced the doom of continuous or 'rational' space, and the way was made clear for Picasso and the Marx Brothers and Mad magazine.

Even mud gives the illusion of depth.

Except for light, all other media come in pairs, with one acting as the "content" of the other, obscuring the operation of both.

All media are extensions of some human faculty- psychic or physical.

When information rubs against information the results are startling and effective. The perrenial quest for involvement, fill-in, takes many forms.

All advertising advertises advertising.