I think popping, especially in the robot and animatronic genres, is one of the most visually compelling art forms which represents human/machine ambiguity. It’s often almost inconceivable that the human body can perform such movement.

From my non-expert point of view there seem to be common themes in choreography: the body being controlled by external mechanical forces; plugging in and out; and what appears to be a softer, more human soul trying to emerge represented by the more fluid ‘waving’ elements.