ey , ▁long time ▁expl orer ▁and ▁clim ber ▁of ▁the ▁Cas cade ▁Mountains ▁in ▁Washington ▁and ▁British ▁Columbia . ▁The ▁gu ides ▁outline ▁routes ▁to ▁sum mit ▁every ▁peak ▁of ▁any ▁significance ▁in ▁the ▁region . ▁ ▁Many ▁photos ▁in ▁the ▁books ▁were ▁taken ▁by ▁US GS ▁scient ist ▁Austin ▁Post . ▁The ▁gu ides ▁are ▁published ▁by ▁The ▁Mount aine ers . ▁ ▁References ▁▁▁▁▁▁▁ ▁Category : C lim bing ▁books ▁Category : Al pine ▁guide ▁books ▁Category : N orth ▁C asc ades ▁National ▁Park ▁Category : C as cade ▁Range <0x0A> </s> ▁R ational ▁ignor ance ▁is ▁ref ra ining ▁from ▁acqu iring ▁knowledge ▁when ▁the ▁supposed ▁cost ▁of ▁educ ating ▁ones elf ▁on ▁an ▁issue ▁exceed s ▁the ▁expected ▁potential ▁benefit ▁that ▁the ▁knowledge ▁would ▁provide . ▁ ▁Ign or ance ▁about ▁an ▁issue ▁is ▁said ▁to ▁be ▁" r ational " ▁when ▁the ▁cost ▁of ▁educ ating ▁ones elf ▁about ▁the ▁issue ▁sufficiently ▁to ▁make ▁an ▁informed ▁decision ▁can ▁out we igh ▁any ▁potential ▁benefit ▁one ▁could ▁reason ably ▁expect ▁to ▁gain ▁from ▁that ▁decision , ▁and ▁so ▁it ▁would ▁be ▁ir r ational ▁to ▁waste ▁time ▁doing ▁so . ▁This ▁has ▁consequences ▁for ▁the ▁quality ▁of ▁dec isions ▁made ▁by ▁large ▁numbers ▁of ▁people , ▁such ▁as ▁in ▁general ▁elections , ▁where ▁the ▁probability ▁of ▁any ▁one ▁vote ▁changing ▁the ▁outcome ▁is ▁very ▁small . ▁ ▁The ▁term ▁is ▁most ▁often ▁found ▁in ▁econom ics , ▁particularly ▁public ▁choice ▁theory , ▁but ▁also ▁used ▁in ▁other