As compared to today's video gaming systems, pinball machines may seem quaint and simple. According to Cavatorta, Dual Coincidence incorporates 17 computers (running about 12,000 lines of code), six servo motors, 10 optical sensors, 12 rotary encoders, 35 inductive sensors, 75 switches, 115 solenoid actuators and 704 channels of lighting. "I want strangers to talk to each other, and I want there to be this unpredictable social component, where people's personalities come into play," says Cavatorta