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【求一篇《willthehumanbrainbereplacedbycomputer?》的文章】
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求一篇《willthehumanbrainbereplacedbycomputer?》的文章

孙守光回答:
  Ithinkhumanbrainismuchpowerfulthatcomputer.First,it'sthecreativeideainhumanbrainthatbringscomputerstoourlife.Mancanmakeupacomputerwhilecomputerscannevermakeupaperson.Second,computersneedelectricityasitspower,whileamancanusehisbrainwheneverhewantsto.   Accordingtoasurvey,ahumanbrainisequalwithseveralhundredmillioncomputers.Theonlyproblemisthatmostoftheresoursesinhumanbrainhaven'tbeendevelopedyet,infact,with3%developed.Ifwecandevelopeourbrainfully,thecomputerwillnotbeacircumstancetohumanbrain,nottosaytobemorepowerful.   What'smore,computerscannotrunwithoutcontrolfromhuman.Alltheseevidencesabovecanprovethathumanbrainismuchmorepowerfulthanthecomputer.   还这篇难一点   Somerecentdevelopmentsinthecomputerindustrymakescientistspredictthatthegapbetweenhumanbeingsandmachineswillbeclosedabouttheyear20000.   Tounderstandthesignificanceofthispredictionletuscomparethehumanbrainwithexistingcomputers.Thebrainconsumeselectricalenergyattherateof25wattsandoccupiesavolumeofonetenthofacubicfoot.Thebrainhousesbetween10billionand100billionitemsofinformation.Everybraincellisdirectlyconnectedtomanyothercells.Asaresult,thecellsinwhichinformationisstoredcancommunicatewiththousandsofothercells.   However,thecomputerconsumes1000,000wattsofelectricalpowerandoccupieshundredsofcubicfeetofspace.Itsmillionitemsofimmediatelyaccessibleinformation.Incontrast,thecomputermemoryislikeacellofpigeonholes,withnothinkingcapacityandnoconnectionselsewhere.   Inaword,theelectronicbrainsarehopelesslyinadequateincomparisonwiththehumanbrains.
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