Laws of media 367 sequences of actions that tend to return it to its rhythmic pattern, this return being the act of consummation, or completion. If the first action performed fails to do this, fails that is to stop the original disturbance, then other sequences may be tried. The brain runs through its rules one after another, matching the input with its various models until somehow unison is achieved. This may perhaps only be after strenuous, varied, and prolonged searching. During this random activity further connexions and action patterns are formed and they in turn will determine future sequences. (pages. 67–8) The inevitable drive for “closure,” “completion,” or equilibrium occurs with both the suppression and the extension of human sense or function. It was Edward T.Hall who in our time first drew attention to the fact that all human artefacts are extensions of man. In The Silent Language, he wrote: Today man has developed extensions for practically everything he used to do with his body. The evolution of weapons begins with the teeth and the fist and ends with the atom bomb. Clothes and houses are extensions of man’s biological temperature-control mechanisms. Furniture takes the place of squatting and sitting on the ground. Power tools, glasses, TV, telephones, and books which carry the voice across both time and space are examples of material extensions. Money is a way of extending and storing labor. Our transportation networks now do what we used to do with our feet and backs. In fact, all man-made material things can be treated as extensions of what man once did with his body or some specialized part of his body.7 Hans Hass, in The Human Animal, sees this power to create additional prosthetic organs as “an enormity from the evolutionary standpoint…an advance laden with unfathomable consequences” (page 101). Our laws of media are observations on the operation and effects of human artefacts on man and society, since a human artefact “is not merely an implement for working upon something, but an extension of our body, effected by the artificial addition of organs;…to which, to a greater or lesser degree, we owe our civilization.”8 Hass considered the advantages of our bodily extensions to be five: (a) They have no need of constant nourishment, thus saving energy. (b) They can be discarded or stored rather than carried (a further saving of energy).