Which half? One day when I was a junior medical student, a very important Boston surgeon visited the school and delivered a great treatise on a large number of patients who had undergone successful operations for vascular reconstruction. At the end of the lecture, a young student at the back of the room timidly asked, "Do you have any controls?" Well the great surgeon drew himself up to his full height, hit the desk, and said, "Do you mean did I not operate on half of the patients?" The hall grew very quiet then. The voice at the back of the room hesitantly replied, "Yes, that's what I had in mind." Then the visitor's fist really came down as he thundered, "Of course not. That would have doomed half of them to their death!" God, it was quiet then, and one could scarcely hear the small voice ask, "Which half?" E.E. Peacock Jr., Seeing With Fresh Eyes science
Blueprints Blueprints lead to the making of things that are abstract, not always based on reality. Once something becomes abstract, it breeds disconnectedness — separation and the inability to connect with our surroundings. People buy houses from blueprints, but then don't like the actual house: "What on earth is this? I had no idea it was going to be like this...etc." Christopher Alexander, The Battle for the Life and Beauty of the Earth Maps and observationThe preliminary sketch makingdesign