To demonstrate the principle that we find our way to individual expression through immersion in a group and imitation of what we encounter there, watch this video of dancers performing the Harlem Shake. (The original Harlem Shake.)

The phenomenon here is familiar to people who dance—each individual dancer takes the moves everyone else is doing and makes them her own. No one can doubt that they are doing the same dance, yet neither can we doubt that each of these dancers has found a uniquely expressive voice.

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