* Optimal density is 600 protestors per square mile. This is like having 1 protestor on every corner (4 per intersection x 100 intersections per sq mile), with 1 or so walking between blocks at the same time (175 connecting streets per sq mile). This is a conservative/non-crowded protest with a massive impact. We consider it safe, since the police can't possibly corral or harass such a diffuse group of people

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