ERRATAinIntuitionPumpsCorrectionsofthemistakes,thinkos,typos,andotherUsefulImprovementstoIntuitionPumpsandOtherToolsforThinking. Sofar,thesearetheerrorsthathavebeenpointedouttomebysharp-eyedreaders.IespeciallywanttothankHugoDixonandSaraSmollett,thefirstreaderstopointtheseout.Ifyoufindothers,pleasepointthemouttome,andIwillbeverygrateful.DanielDennettp20:Sixthlineofthelastparagraphcorrectedfrom"Askingthewrongsquestions"to"Askingthewrongquestions".p.22.IsaythatmosterrorsinDNAcopyingare“ofnoconsequence,sincenothingreadsthem!Theyareasinconsequentialastheroughdraftsyoudidn’t,ordon’t,handintotheteacherforgrading.”But,asSusanvanDrutenpointsouttome(inanoteon9July),“youknowthisisnotaccuratebecauseyouyourselfhavecounseledstudents(backonpage20)thatablurted-outroughdraftwillprovidethemwithsomethingtofix.Humanslearnfromroughdrafts,butDNAdoesnot.”Soitisabadanalogy.p.116.revisedflowgraph:

p.117.line10oftheRAPprogramshouldhave8,not11,intheGOTOSTEPp.119.zeroonthefirst“branchonzero”line:

p.122.amissingzeroisnowadded:

p.176.Iinvitedreaderstosendmebetterambiguous(“Quinian”)crosswordpuzzles.Iwasremindedbyseveralreaders,firstbyIlanCaron,ofthefamous1996NewYorkTimescrosswordpuzzlethat“predicted”thewinneroftheupcomingpresidentialelection:BOBDOLEorCLINTON,withallthedefinitionsofthecrossingwordsequallyambiguous.Itcanbefoundonthewebat,forinstance:(http://en.wikipedia.org/wiki/The_New_York_Times_crossword_puzzle#Records_and_puzzles_of_note).

OtherambiguouspuzzlesintheBritishcrosswordtradition(crypticclues,muchlessconstraintonwordcrossings)havebeensenttomebyRogerPhillipsandseveralotherreaders.p.252.Ispeakof“thefour-strokeOttocycleandthetwo-strokeDieselcycle”whereIshouldhavesaid“theOttocycleandtheDieselcycle,inbothtwo-strokeandfour-strokeversions”ThankstoBruceHymanforpointingthisout,December26,2017.p.275.IquoteAlain“everyboatiscopiedfromanotherboat....itistheseaherselfwhofashionstheboats,choosingthosewhichfunctionanddestroyingtheothers.”RogerDePledgepointsoutthatAlain(pseudonymofÉmileAugustChartier]waswriting“notaboutPolynesianbutBretonfishermenontheÎledeGroix(47°38'N,3°28'W)offLorient.Thiswasmymistake,sincethearticlebyRogers,D.S.,andEhrlich,P.R.(2008).“Naturalselectionandculturalratesofchange.”ProceedingsoftheNationalAcademyofSciencesDOI:10.1073/pnas.0711802105isaboutPolynesiancanoesandcitesAlainbutdoesnotclaimhewasspeakingaboutcanoes.Idrewthatinferencebymistake.p.398.Ihadn’tfoundtheFrenchversionofFabre’swordsaboutSphex,butthesehavebeensuppliedbyRogerDePledge:Aprèsdeuxoutroisépreuves…lesaisitaveclesmandibulesparlesantennesetl'entraîneimmédiatementdansleterrier.Quifutsot?p.420,ThegameInamed“chmess”andopinedtobeprobablynotworthplayinghasindeedbeenexploredindepth,asIsurmised,andisknownasSuperKing,accordingtoanote(19June)fromBenjaminConover.Itandothervariantssuchas“960andSeirawanChesswereusedasawayfortopgrandmasters(BobbyFischerandYasserSeirawan)toimprovetheirowngames.SoChmessisusefulforimprovingyourChessgame!”

p434:IntheRAPprogramfortheanswerto"Exercise2"(subtraction),instep10,the"REGISTER"columnshouldread"2",not"1".p.435.Line7shouldhave3inBRANCHTOSTEP:

p.436.newflowgraph:

P437:NewRAPprogramforexercise3b:

p.441.revisedflowgraphwithzero-outarrowsonsteps2-4:

p.451.ALAIN[ÉmileAugustChartier].....

***TheseventoolsdrawnfromPartIIexcerptedintheGuardianinspiredacomicstripbynoxnbekwhichcanbefoundathttp://nbek.org/blog/?p=2020AndhereisacartoondrawnbyNeilCohn,inspiredbyastick-figurecartoonIsawonadooratMIT’sAILabintheearly1980s.(Idon’tknowwhodrewtheoriginal.)