Peter Weibel
«Simultaneous Split Medium»

A text dealing with the problem of simultaneity is typed simultaneously on two typewriters. The conventional typewriter keyboard is divided into two parts – one half for the right hand, the other for the left hand. And so the right hand types only those letters of a word that have the corresponding keys on the right-hand half of the right-hand typewriter. The left hand types only the letters of a word that are on the left-hand half of the left-hand machine.

Peter Weibel