Some people think that religion is an adaptation evolved both by cultural and biological evolution to make groups to cohere, in part for the purpose of trusting each other, and then being more effective at competing with other groups.
宗教は 信頼関係を築き 集団の結束力を強めようとする― また 他集団に勝ろうとする― 様々な試行錯誤の中で 発展したと考える人もいます