The wealth of information we are attuned to deducing from living forms helps to explain the intensity of feelings generated by competing architectural styles. When only a millimetre separates a lethargic set of the mouth from a benevolent one, it is understandable that a great deal should seem to hang on the differing shapes of two windows or roof lines. It is natural for us to be as discriminating about the meanings of the objects we live among as we are about the faces of the people we spend time with.

