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satoh

justsohappenedthatthegeneratorwentoutlastweekandthemaniscomingthisafternoontopickitupandfixit,Another"backup"system hasfailed you,thistimethrough no connection with yourbehavioratal(uncoupledorindependentevents,inthiscase,sincethekeyandthegeneratorarerarelyconnected).Wel,therisalwaysthebus.Butnotalways.Theniceoldgenthasbeenlisteningtotheradioandtelsyouthethreatenedlock-Outorthedriversbythebuscompanyhasindeedoccured.ThedriversreRISetOdrivewhattheyclaim areunsafebuses,andincidentalywantmoremoneyaswel....Youcalacabfrom yourneighbor'sapartment,butnonecanbehadbecauseofthebusstrike.(Thesetwoevents,thebusstrikeandthelackof cabs, are tightly connected,dependent events,or tightly coupledevents.Hsinceoncetriggerstheother.)Now Iwouldlikeyoutoanswerabriefquestionnaireaboutthisevent.Whichwastheprimarycauseofthis"accident"orfoul-up?.日."Thecauseoftheaccidentistobefoundinthecomplexityofthesystem.Thatis,eachofthefailuresH.wastrivialbyitself.Suchfailuresareexpectedtooccursincenothingisperfect,andwenormalytakelitlenoticeofthem.Thebusstrikewouldnotafectyouifyouhadyourcarkeyortheneighbor'scar.Theneighbor'sgeneratorfTailurewouldbeoflitleconsequenceiftaxiswereavailable.Ifitwerenotanimportantappointment,theabsenceofcars,buses,and taxiswould notmater.On anyothermorning thebrokencofeepotwouldhavebeenanannoyance...,butwouldnothaveaddedtoyouranxietyandcAusedyoutodashoutwithoutyourkeys.Though thefailuresweretrivialinthemselves,andeachonehadabackupsystem,Orredundantpathtotreadifthemainonewereblocked,thefailures810