BIBLIOTECA SCIE N TIFICA ·sAN SONI REPRINTS 9 BibliotSecciae ntiSfiacnas oni alvtroil upmuib blii cat l.JohDn. B arrowL,eo ridgienlil '(usencoinveddaei zrisonoe ) 2.P au!D avieGs,lu il ttirmmeii n( utetreizda i zione) 3.R icharLde akeLy,eo rigidneil l'umanità 4. RicharDda wkinIsfi,l u mdee vliltaa 5.JameGsl eicCk,a (otser ezdai zione) 6.S tepheHna wking-RoPgeenrr osLe,an atduerslapl aoedz etileo m po (seconeddai zione) 7.D anieCl. D ennetLt,am enelt meee nti 8.A lanL ightma1n,è mdpsiot elle 9.R ogerP enrosLe,am enntueod veal l'imperatore Roger Penrose la n1entneu ova dell'in1peratore Prefazdiio ne MartiGna rdner Tradduiz ione LiberSoo sio SansoEndii tore Proprietà letterirsaerrivaa ta © 198O9x foUrndi vePrressist y © 1997R CSL ibSr.ip .MAi.l,an o (gRiCàS L&i Gbrrain opdeirS e. p.A.) ISB8N8 --3178330-X Titoorilgion ale: TH//è• ,"MPHWNRl:\M�W/ NJ> Priemdai zgeinonnae1i:9o 9 2 Prima edBiizbiloiSnoceti eecnSata infsigomen nin:1a 99i8o PREFIAOZNE Molti mgartaenmdeaifi ti scitrico iv adnifocfi i,sl ene oinm possibi le, slcirbcirovime prsreie bnaiu lnpi u bbldiipc roao nifF.i nao oggsisi a rebbes uppoptocurhtraeonec hReo gPeern r,uo nsoe defiis imcait empaitiùine ctliln iitg ceer eiavdtiem lo ndaop,p arte nessea tcaaltee goriaa.v eClvtheatii so u daoiri t niodciiov luil ga tievl ies uceo nferseanpzeeva rcehaeln toàinèc n o sE ìs.ta ta comunuqnupaei acevolissima sorparveesvaa scoprire che Penrose sottdreatltme tpooa lsluefe a cthisec iief_ìncptheepr r oduurnr e libmreor avipgelprir oosfioan ntien ltlEi ui.ngl eibcrhdoei vente ràu nc liacsos. Bencihc éa pidtiqo uleisl tiobs rpoaz inova ssoturiiio znizt della teoria demlelcac aqrnueialcnaatt eiid vseitltilàca,a della csomoloilgloi rtameo,a c ernatèlq eu eclhlieofi loscohmfiaian o i<lp< roblmeemneat-c or.pD oad> e>ceinp nrpioo nedniuti n «aAl frot(ed>v>oelA stpae< rI< netlliAgretnifzlia>ec h)>ia ancneor cdait o convinccheeern cturino s ecood luoe( ea lchuannin roi dotto questteom dpioa ttaes socali in nqtun'ana!ii)c omuptesarr anno ing raddifoa qreu alcsoisdaaics uisi ic aa pacmee nueunt maa na. Stimoldaait idl ifi abtnsracii elnezitant ig ioevc eonntvcùih,ne t i lan osmternaent onsi aal tcrhoue n « ocmupteftart doic arn>e> (ocmese is pruensvaso elM taar viMni snk,yd )annpoes rc oantto chpei aceed roel, ol rcaea padciai ptpàr elzbaze alrlele u'zmzoa, ris,ml oac oscieel nalz iab edrevtloà l esriea no ccahpea cità emegreraninnmo o dnoa tuqraulaeni dr booo etl tertonsiaci randniov enatabtbia sctoamnzpaln eesllso irc oo mptoarmento algmoirc.io t Alcuni filsocsioe(fniipz naa dr etlilJcaoo hlSnae raeri cllue i, famoseops eirmneot mentdaelle<l <aS tcainneze>aès>d iscusso minuzmieonesdt aaP enr)do isseseenntgeoirncoan emtP.ee lro ro iclo mputeèrs onsotna nzdiiavlemdreasnlcotla eel comleactrici canicchhoeep aenroc ornou et,le voeq ualsailatsria c hceo sa trasmseetgltni(aai.Sp otreablbtree tbtaennbteao s uanrc eo mpu- 7 tesrur lo toladmibe ingtolo i seu ld iafl cuqsaustaot rrsatovu e.b)i Poicleh'léte rtiscmiiu toàva et trrsafiovl eiv eplioùc edmiae lnttree fromed ie ngeir(aec ceziftaotnpa e lral uec,)p uòm anipolare simbpoilrùia pidadmeelncltaeel comleactncriaic,ch ipee e rciò puòsv olgceormeip d iict ompslseietnàmo erM.a u nc omputer elet(tertlireciotocn <oc<)a spci>ce>i còh feai nu nm odsou periore al«locam rpenosn>ied >iu na bacOog?gi ic ompugtieorc aa no scacacllhiivd eelgilr oa nmdaie s.<tC <raipiscigolin oomc>eo>g lio delmlaac chpieinrgla i odceotl r cihsue ng rupdpiao p passionati dic opmutseidr i vertuinravoo nlaotc ao strcuoinpr aerd tii giocagtutaosltii ? Illi bdriPo e nrèol as'tet apcivicùgo o rcohsseoi s at astcor itto finoalrl'alA f rot.Ne esie csocloisr osnsiot aataven zaotbei ezioni altlears iid uzisoencioscntudiuiocn ama e nest areubnbmaea c chicnhafe un ziosneac olnedgnogo itd ee lfilsaim caal o,'ffe nsiva diP enrèop siecù o nvincenattet iapin engorferc mhaéz nioonn i dispoangialbuiit ldoire pila ssQauteos.tl oi bcrimo o stcrhae Penrèop sideùi fiusnim caot emaEtgièlac inoc .hu en f iolfodosi prigmraa ndieqlzu zaanl,oe hn at imoardafe fr ontparroeb lemi chiefi loscoofin temptoernadnaoer niio fi uctoanrsei derandoli nosni gnificanti. Penrhoasa enc hiecl o ragdgiafi feor ma,dr iec ontarlol a cresecn eengtazidoiun nep iccnoulmoe drifio s iucnri o,b usto resamloiN.o ns ollo'nv uieressoei c sotncrneettm,aa ma enchlea veritmàat emathiauc naa s umai steirnidoispae ned enza atemporCaolmiNete àw.te oE ni nesitPne,n rhoasu ens enso proonfddoi umeid lirt eràve ensziaa ivmleo rnsdofio s iscioa verisrloe gpnloa todneilmclaoat empatuirLcae'a.m inetnetoer ico deniu mePraiuE lr daòmsap arldae<rl<e l diiDb iroio>n c> us io no registturtlatmete ie g ldiiomroizs itroaAin mia.t emèac toinccie s sot alvsoolldtoiia tn radveeruen paa rdtiue n paa giQnuaan.d o unfi siocu onm atemastpieceronia tqm ueslolradt iia nu tiizone proonfdiam procvvhigeslp ais iccohlioagmi«a senpoe riaehna,z> a> essaès eocf!dPOe nrqousael dcipo isdùae rli sudliut nac taol colo proonfdEol .am enect hper endtea tcptoeuonr n i stacnoltnae veroigtgàe tNtoinpv uaeò.s s,se cirh eiePdeoens r,ce hieml o ndo diP lateoi mnloe n dfoi s(ihcceiofi sihcain ongogd ii ssolto nella matemastiiacnaro)e a iulnnts àom loon deol o se tsso? Molptaeg inneleli bdriPo e nrsoosndeoe diacu antfaema osa strusttiumariifial a et tcahliia mlia'ntsai deiMm aen deldbarlo t, nomdee slu soc opr.Pi utcroo rnetinaur aensdtsoai rmaeis léie n uns ensstoa tqiusatnisdcuoope a rti viennggroa,nln oads iutae struitntfuirnai ctoammpetlnmaitu ceta a sisnacneteimnme ondtie 8