Half as many people will not support half as many enterprises In a given geographical territory, half as many people will not support half as many such enterprises spaced at twice the distance. When distance inconvenience sets in, the small, the various and the personal wither away. Jane Jacobs, The Death and Life of Great American Cities densitydistancegeographybusinesseconomics
Michaelangelo's hammer A young man named Michelangelo stands in front of a huge granite monolith. He stands there at a time in history before the technologies that brought us the hammer and chisel have occurred. He gazes at the rock. He dreams his dream and the best that he is able to say is, What a wonderful stone you are. … Michaelangelo now stands in front of the same rock. Thrust into his hands are a hammer in one and a chisel in the other. He looks at his hands, at the technological tools that they hold, and gazing at the same stone, with epiphanic zeal, says I must let Moses out. Richard Saul Wurman, Understanding Understanding Constrained by the medium tools