Bomb is a software system that produces visual music. It creates a video stream that is fluid, textured, rythmic, animated, and generally non-representational. It uses techniques of non-linear iterated systems, like video feedback, but implemented on an ordinary PC. The result is a form of artificial life, or alife. The essential feature of life is creative expansion. When a seed develops it performs information decompression. In contrast to behavior that is static, repetitive, random, or predictable, life has the ability to keep doing new things. It maximizes how long you stare at it before you get bored. It cannot be quantified because random is a relative term; you can never be sure there isn't a message hidden in the noise.