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Gray goo (also spelled as grey goo) is a hypothetical global catastrophic scenario involving molecular nanotechnology in which out-of-control self-replicating machines consume all biomass (and perhaps also everything else) on Earth while building many more of themselves, [1] [2] a scenario that has been called ecophagy (the literal consumption of the ecosystem). [3]
Extreme risk – Low-probability risk of very bad outcomes; Fermi paradox – Problem of the lack of evidence for alien life despite its apparent likelihood; Foresight (psychology) – Behavior-based backcasting & forecasting factors; Future of Earth – Long-term extrapolated geological and biological changes of planet Earth
In this situation (called the grey goo scenario) out-of-control self-replicating nanorobots consume entire ecosystems, resulting in global ecophagy. However, the word "ecophagy" is now applied more generally in reference to any event [ dubious – discuss ] — nuclear war , the spread of monoculture , massive species extinctions —that might ...
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Gray goo is another catastrophic scenario, which was proposed by Eric Drexler in his 1986 book Engines of Creation [76] and has been a theme in mainstream media and fiction. [77] [78] This scenario involves tiny self-replicating robots that consume the entire biosphere using it as a source of energy and building blocks. Nowadays, however ...
Almost 2 million men and women who served in Iraq or Afghanistan are flooding homeward, profoundly affected by war. Their experiences have been vivid. Dazzling in the ups, terrifying and depressing in the downs. The burning devotion of the small-unit brotherhood, the adrenaline rush of danger, the nagging fear and loneliness, the pride of service.
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Warheads Extreme Sour Hard Candy derive their strong sour flavor primarily from malic acid, which is applied as a coating to the outside of the small, hard candies.The intense sour flavor fades after about 5 to 10 seconds, leaving a fairly mild candy that contains the much less sour and more flavorful ascorbic and citric acids.