Grey goo 

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Molecular
Nanotechnology

Molecular assembler
Mechanosynthesis
Molecular machine
Productive nanosystems
Nanorobotics
K. Eric Drexler
Engines of Creation
Grey goo

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Nanotechnology

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Grey goo is a hypothetical end-of-the-world scenario involving molecular nanotechnology in which out-of-control self-replicating robots consume all matter on Earth while building more of themselves—a scenario known as ecophagy ("eating the environment").

The term grey goo is usually used in a science fiction or popular-press context. In the worst postulated scenarios (requiring large, space-capable machines), matter beyond Earth would also be turned into goo (with goo meaning a large mass of replicating nanomachines lacking large-scale structure, which may or may not actually appear goo-like). The disaster is posited to result from a deliberate doomsday device, or from an accidental mutation in a self-replicating nanomachine used for other purposes, but designed to operate in a natural environment.

Contents

Grey goo in science fiction

See also

References

  1. ^ "At one time... [...] The lxians contemplated making a weapon—a type of hunter-seeker, self-propelled death with a machine mind. It was to be designed as a self improving thing which would seek out life and reduce that life to its inorganic matter. [...] The lxians do not recognize that machine makers always run the risk of becoming totally machine. This is ultimate sterility. Machines always fail...given time. And when these machines failed there would be nothing left, no life at all."—Frank Herbert, God Emperor of Dune (1981)
  2. ^ McCarthy, Will Bloom New York:1998—Ballantine Del Rey Books

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