(情報科学)技術的特異点と科学･技術等 1 (ナノテク) [転載禁止]©2ch.net

(情報科学)技術的特異点と科学･技術等 1 (ナノテク) [転載禁止]©2ch.net (840ﾚｽ)
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419: 385 [sage_teoff] 2016/09/12(月)17:54 ID:zJmk3Nkm(2/8) AA×

419: 385 [sage_teoff] 2016/09/12(月) 17:54:24.69 ID:zJmk3Nkm

!!!!!　　　　e0081_
　　　　　　  This everything-else-is-chemistry nonsense breaks
　　　　　　apart on the twin shoals of scale and complexity,
　　　　　　he explains.
　　　　　　 　 Those zillions of molecules have collectively
　　　　　　acquired a property, liquidity, and how to look for
　　　　　　it, there's nothing in those well-understood equations
　　　　　　of atomic physics that even hints at such a property.
　　　　　　The liquidity is ``emergent.''
　　　　　　  In much the same way, says Anderson, emergent
　　　　　　properties often preduce emergent behaviors.
　　　　　　Cool those liquid water molecules down a bit,
　　　　　　for example, and at 32^OF they will suddenly quit
　　　　　　tumbling over one another at random. Instead they will
　　　　　　undergo a ``phase transition,'' lotking themselnes
　　　　　　into the orderly crystalline array known as ice.
　　　　　　Or if you were to go the other direction and heat the
　　　　　　liquid, those same tumbling water molecules will
　　　　　　suddenly fly apart and undergo a phase transition into
　　　　　　water vapor. Neither phase transition would have any
　　　　　　meaning for one molecule alene.
　　　　　　  And so it goes, says Anderson. Weather is an
　　　　　　emergent property: take pour water vapon out over the
　　　　　　Gulf of Mexico and let it interact with sunlight and
　　　　　　wind, and it can organize itself into an emergent
　　　　　　structure known as a hurricane. Life is an
　　　　　　emergent property, the product of DNA molecules and
　　　　　　protein molecules and myriad other kinds of molecules,
　　　　　　all obeying the laws of chemistry. The mind is an

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