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S I D E   B A R - Patterns
zPatterns, based on the concepts of Christopher Alexander and the software development contributions of Cunningham, Beck, the Gang of Four, and many others, have provided a huge conceptual contribution to the thoughts and vocabulary of the software/systems development community.
Relate this to the distinct different between the hardware and software order of magnitude of growth since 1950. Suggest that the notion and codification of patterns may create a noticeable upward blip in the graph.