Spatial Negotiation in Oia, Santorini I took this picture in Oia long ago. It tells me a lot about urban form. The balcony probably wanted to be deeper, but the alley wanted to be wider and smoothly turn left. Some negotiation seems to have occurred between those two entities. The result is delightful because the balcony nourishes the alley and the alley nourishes the balcony. This seems to be a definition of beauty: beauty happens when entities draw their raison d'êtreand wholeness from the extent to which they are complementary parts of an interlocking whole.