twin city sidewalks: *** Sidewalk Weekend! ***

Sidewalk Rating: Elusive

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Dorsey loves cities and the way movement within them can be charted and broken down into millions of parts. A city is a system that is at once flexible and stable, searchable and random. He expressed a similar interest in ant communities and aspen trees. “I really like any colony-based structure, where you have a strong dependence on a network,” he said. “Aspen trees grow in groups. If one of them dies, they all suffer. I think humans have the same thing, though it’s not as much on the surface.” He likes to draw ferns. (In his twenties, he studied botanical illustration.) “They’re a single structure that tends to repeat itself,” he said. “They’re fractal.” Exotic as these enthusiasms are, they seem suspiciously apt for the creator of Twitter, a service defined by its “strong dependence on a network.” As a thinker, Dorsey seems at once earnest and improbably coherent.

[from The New Yorker.]