It is controlled via an external computes. Amazing movements!
Sometimes the sensation of life related to the movement of a machine may be connected with the regularity and speed of the movement. For example, a machine that moves slow is perceived more “alive” than one that moves fast, and an irregular movement, with changes of rhythm, is perceived more alive that a regular movement. That may be one of the reasons why robots like Keiko Takahashi’s Meter Crawlers made out of off-the-shelf steel tape measures move like the were alive: