Why aren Alexanders patterns universally used by architects?
There seems to be no single reason. People cite factors including clashes with long-established practices and with the professional culture of architects, economic factors, the fact that Alexander focuses on having people design and build their own houses, and differences in opinion about how good or useful the particular patterns in A Pattern Language are in practice. • Can you use patterns in very large development efforts? People have reported that they do so. • Are patterns over-hyped? Of course. It is impossible to avoid. • Do patterns really work? Please ask a more specific question.