یا توان درک ریاضیات را. خوب من جواب این مساله را نمی دانم. در قرن هفدهم افرادی در تاسمانی پیدا شدند که آتش نداشتند 
Well, I don't know. There were Tasmanians who were discovered around the 1600s and they had no fire. 