@JoshMorrison @pmarca Metcalfian transit challenge: design region pop. 10m : any person can meet any other any where in 40 min. 95% of time.
@JoshMorrison @pmarca Urban highway tunnels. Autos go almost anywhere O(n^2) vs. mass transit mostly linear O(n).
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@NickSzabo4@JoshMorrison@pmarca I don't think it's widely recognised that the killer app of self-driving cars is self-parking cars.Thanks. Twitter will use this to make your timeline better. UndoUndo
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