Table Of ContentBIBLIOTECA 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
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