“The reason you keep on coming back to see me is very simple; every time you have seen me your body has learned certain things, even against your desire. And finally your body now needs to come back to me to learn more. Let’s say that your body knows that it is going to die, even though you never think about it. So I’ve been telling your body that I too am going to die and before I do I would like to show our body certain things, things which you cannot give to your body yourself… So let’s say then that your body returns to me because I am its friend.”
Carlos Castaneda

Journey to Ixtlan

Generative vs. Descriptive

“Does the DNA contain a full description of the organism to which it will give rise? The answer is no. The genome contains instead a program of instructions for making the organism – a generative program …

A descriptive program, like a blueprint or a plan, describes an object in some detail, whereas a generative program describes how to make an object … consider Origami … by folding a piece of paper in various directions, it is quite easy to make a paper hat or a bird from a single sheet. To describe in any detail the final form of the paper with the complex relationships between its parts is really very difficult, and not of much help in explaining how to achieve it. Much more useful and easier to formulate are instructions on how to fold the paper … a generative program for making a particular structure.”

Lewis Wolpert – Principles of Development
quoted in
Christopher Alexander – The Nature of Order – Book 2: The Process of Creating Life

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