Roobert is an anachronistic copy of a magnetic motor made from a video posted by Roobert33 on the Youtube site. In this video, we see a very simple machine whose rotor fitted with magnets seems to come alive when another magnet fixed overhanging a gantry approaches. This object, which is based on the empirical observation that magnets repel each other when two same polarities are brought together, is an example of the research on perpetual motion that is flourishing on the Internet. In all cases, these are simple processes that appeal to the common sense of the person paying attention to them. This obvious simplicity is itself the driving force behind this research. The magnetic motor is a powerful fiction that sets the imagination in motion, a bit like the movement of Marcel Duchamp's bicycle wheel which helped him to think.

Roobert is made in the manner of a 19th century scientific instrument in order to put into perspective the fiction of free and free energy, what it would have changed in global geopolitics.