government selfie time tunnel 

The whole family. (Middle years were trouble.)

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government selfie time tunnel 

@pauline i know half of these people.

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myna.social

Basic models of flocking behavior are controlled by three simple rules: 1) separation: avoid crowding neighbours (short range repulsion); 2) alignment: steer towards average heading of neighbors; 3) cohesion: steer towards average position of neighbors (long range attraction). With these three simple rules, the flock moves in an extremely realistic way.