Media artists often combine science and art to explore the connections and commonalities between the two. Control Freak initially also attempted to combine science and the art of writing, and later evolved into a unique art activity with audience participation and physical experience. Through the thematic exhibition ‘LOVE Long: Robert Indiana and Asia’, Control Freak combined the thoughts and writing experience of the audience, participants and the artist. It is an art installation, and can also be regarded as a continuously evolving act of creativity and a journey of never-ending artistic exploration. Gravity and magnetic forces generated by electro-magnetic fields are two of the four fundamental forces of the universe, and they represent the rule of forces in nature. The strokes and structure of characters, on the other hand, represent the rules of culture created by humans, art and the practice of the rules of human civilization. The first version of Control Freak, the Magnetic Pendulum Chinese Writing Robot, connected the rule of universal forces and the rule of human writing to create calligraphic characters written with universal forces. Control Freak reflected the typical artistic style of media art — the merger of science and art, and extended automatism aesthetics in surrealism. It explored artistic creative possibilities beyond human conscious creations. Through controlling the brush that was affected by magnetic fields, participants experienced a writing process that involved the wrestling between the human body and the law of physics. The characters that were put down on the rice paper, therefore, became imprints of the physical writing process and mental writing sentiments, and highlighted the complex relations between humanised writing and texts produced by mechanical printing. Finally, hundreds of ‘hearts’, in various forms and shapes, put together by the participants were placed together (quantity) and compressed (time), creating another layer of meaning: each character was an epitome of a world, and different thoughts and experiences emerged under the same rules. Control Freak, therefore, was a new media art installation that invited audience participation, and a machine that produced art, providing experimental and re-creational possibilities to the concept of contemporary Chinese calligraphic art.