This is a very interesting documentary that shows several simulation situations: some nurses prepare for birth assistance with a mannequin; cars doors are tested by robots opening and closing the doors on and on, washing machines are tested receiving blows and vibrations, a matrix is tested by getting permanent pressure; some people practice for making work interviews; two old ladies dance without music. One scene follows the other with no explanation, no voice over, no interviews, no talking heads, building a simulated universe in which real actions don't have a place. This simulation world gets stranger and stranger as the film develops. Very good.