Designer, implementor, user, writer A Fragment by Donald Knuth dl.acm.org Thus, I came to the conclusion that the designer of a new system must not only be the implementor and the first large-scale user; the designer should also write the first user manual. The separation of any of these four components would have hurt TeX significantly. If I had not participated fully in all these activities, literally hundreds of improvements would never have been made, because I would never have thought of them or perceived why they were important. Eating your own dog food making
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