Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Amfani na farko na ka'idar wasan shine don bayyanawa da kuma samfurin yadda mutane ke nuna hali. Wasu malamai sun yi imanin cewa ta hanyar gano daidaitattun wasannin za su iya hango yadda ainihin mutane za su yi hali idan aka fuskanci yanayi mai kama da wasan da ake nazari. An soki wannan ra'ayi na musamman game da ka'idar wasan. An yi jayayya cewa ra'ayoyin da masu ra'ayin wasan suka yi sau da yawa ana keta su idan aka yi amfani da su ga yanayin duniyar gaske. Masu ra'ayin wasan yawanci suna ɗauka cewa 'yan wasa suna aiki da hankali, amma a aikace halayen ɗan adam galibi suna karkata daga wannan ƙirar. Masu ra'ayin wasan suna amsawa ta hanyar kwatanta abubuwan da suke tsammani da waɗanda ake amfani da su a kimiyyar lissafi. Don haka yayin da zaton su ba koyaushe yake riƙe ba, za su iya ɗaukar ka'idar wasa a matsayin kyakkyawan kyakkyawan ilimin kimiyya wanda ya dace da samfuran da masana kimiyyar lissafi ke amfani da su. Koyaya, aikin gogewa ya nuna cewa a wasu wasannin gargajiya, kamar wasan centipede, tsammani 2/3 na matsakaicin wasa, da wasan mai mulkin mallaka, mutane ba sa wasa da daidaiton Nash. Akwai muhawara mai gudana game da mahimmancin waɗannan gwaje-gwajen da kuma ko nazarin gwaje-gwajen ya cika duk fannoni na yanayin da ya dace. Wasu masu ra'ayin wasan, bayan aikin John Maynard Smith da George R. Price, sun juya zuwa ka'idar wasan juyin halitta don warware waɗannan batutuwa. Waɗannan samfuran suna ɗauka ko dai babu hankali ko iyakantaccen hankali daga ɓangaren 'yan wasa. Duk da sunan, ka'idar wasan juyin halitta ba lallai ba ne ya ɗauka zabin yanayi a cikin ilimin halitta. Ka'idar wasan juyin halitta ta hada da juyin halitta da al'adu da kuma tsarin ilmantarwa na mutum (alal misali, wasan kwaikwayo na wasan kwaikwayo).  Tambaya: Wace wasa ce mutane ba sa yawan yin ta?
Daidaitawar Nash