Von Neumann practices refer to the philosophy and laws regulating the creation of self-replicating machines. Naturally, nanotechnology cannot be permitted to simply run rampant, consuming any and all resources. Enlightened societies strictly regulate their use. In an age where philosophy supercedes want, Von Neumann laws are a subject for hot debate.
Von Neumann laws have jurisdiction only to machines or beings that create exact copies of themselves, such as self-replicating nanites, although many argue that cloning also falls under this definition. Proponents of limiting Von Neumann practices advocate diversity against stagnation, variety against uniformity.