Reciprocity Whenever human activities incorporate machines or rigidly prescribed procedures, the modes of human interaction change. In general, technical arrangements reduce or eliminate reciprocity. Reciprocity is some manner of interactive give and take, a genuine communication among interacting parties. Ursula M. Franklin, The Real World of Technology reciprocity
You are the one that is changed I tilt the room just enough, the space just enough that you may not be able to use your normal mode of placing yourself in that space, forcing you for one second to make a perceptual read and become aware that you are the perceiver and that all information comes through that perceptual act and that when you walk out of there, ...if you take that with you, you will begin to see things everywhere around you and that you are the one that is changed and you are there and that is what changed things. Robert Irwin, Robert Irwin: A Conditional Art Irwin Volumes