One person draws a straight line; 500 people trace it. Each new effort adds imperfection, and the results are total chaos.
Like a visual cross between an Exquisite Corpse exercise and a game of Telephone, this short video by Clement Valla depicts an sequence of efforts to trace straight lines. First, one person draws a fairly straight line. Then a second person attempts (in vain) to trace it. A third person then tries to trace the newer, slightly more crooked line. This goes on until 500 people have participated. Each person adds a bit of imperfection, so the end result is fantastically helter-skelter.