The Evolution of Useful Things A Book by Henry Petroski Here, then, is the central idea: the form of made things is always subject to change in response to their real or perceived shortcomings, their failures to function properly. This principle governs all invention, innovation, ingenuity. Spike and sponShaped and reshapedForm follows failureTheir wrongness is somehow more immediateA small corner of the world of things+23 More The evolution of devices formfunctioninventionprogressfailure
The group of blind mullahs In a natural landscape, each element is part of the greater whole, a sophisticated and intricate web of connections and energy flows. If we attempt to create landscapes using a strictly objective viewpoint, we will produce awkward and dysfunctional designs because all living systems are more than just a sum of their parts. Our culture has tried to define the landscape scientifically, by collecting extensive data about its parts. These methods are much like the group of blind mullahs in the Sufi tale, who try to describe an elephant. Bill Mollison, Introduction to Permaculture The blind men who felt the elephantThe blind men and the elephant holismnature