IGNORANCE IGNORANCE On theW iderI mplications ofD eficiKennotw ledge NICHOLASR ESCHER UniverosfiP tiyt tsbuPrrgehs s Publhiesdb yt he UniveorfPs iitttys buPrrgehsP si,t tsbuPrag.1h,5, 2 60 Copyrigh2t0©0 9U,n iversoifPt iytb tusrgPhr ess Alrli ghrtess erved Manufarcetdiu nt heUn itSetda toefAs m erica Printoenda dd-fpraepee r 10987645321 LibraorfCy o ngreCsast alog-iinng-PubliDcaattai on RescheNri,c holas. Ignora:no cnet hewi deirm plicatoifdo enfisdn etk nowledIgN ei cholas Rescher. p.cm. Inclubdiebsl riaopghirceafle renceisn daenxd. ISBN-1937-:80- 822-6901-04( pb:ka -lkp_a per) ISBN-:1 -08022-6901-14( pb:ka _lkp.a per) 1.I gnora(nTchee oorfyk nowledg2e.)K nowledTghee,o royf 3.C ognitioInT..i tle. BD22l4.7R2 009 12-1dc22 2008052956 FoHre nrKyy burg DedicPahtieldo sopher CONTENTS Prefacixe 1.T he Relagcnho roaf1n ce 2.Q uestainoldnsn so lub2i8l ia 3.C ogniSthioavrlet4l f6 4.C ogniFtiinviet5 u7d e 5.O nL imtiot sS ci6e7n ce 6.O bstatcoPl reesd iFcotrievken ow9l1e dge 7.C aCno mpuMteenrds Mat1t2e3r s? 8.I mplicoaftnliogornasn1 c4e0 Note15s3 Bibgralpiyoh 165 Index16 9 vii