The Nature of Order\\\Christopher Alexander\1980-2004
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Levels of scale
Strong centres
Boundaries
Alternating repetition
Positive space
Good shape
Local symmetries
Deep interlock and ambiguity
Contrast
Gradients
Roughness
Echoes
The void
Simplicity and inner calm
Not-separateness
Generated structure
A fundamental differentiating process
Step-by-step adaptation
Each step is always helping to enhance the whole
Always making living centers
The sequence of unfolding
Every part unique
Patterns: generic rules for making centers
Deep feeling
Emergence of formal geometry
Form language and style
Simplicity
