Discoveries in past few days: store of a thousand guitars; the boutique chessboard store; the amazing @tischlerimages gallery #InfiniteCity
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@michael_nielsen@MarkChangizi once wrote a nice paper on power law between popn size and#distinct business types
@LeapingLlamas @MarkChangizi Not just popn size that matters. Density and mobility crucial too: increases effective potential customer base
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@michael_nielsen what was amazing is that he had intern go through yellow pages counting businesses and ended up with science/nature paperThanks. Twitter will use this to make your timeline better. UndoUndo
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