::bugout:: is an interactive sound-environment based upon principles of reversible/energy-free computation. By adding & removing 'agents', each of which follow a simple rule set, users affect a wide range of parameters in the resulting composition. Sound, created via real-time synthesis, occurs on collisions between agents as they follow their algorithmic trajectories. While compositions begin in simplistic fashion, underlying the work is a complex model that, theoretically, enables energy-free computation. At its core, the work attempts to create a dynamic & expressive system in which notions of computation as sterile or lifeless are challenged & the creative potential of generative algorithms is foregrounded.