人はなんにもならない遊びを､なぜするの? どうして面白いと思うの? 有名な著書をご紹介しつつ､私の見解を述べたいと思います｡
Why do we play just for the sake of play? What about it is so fun? Today, I'd like to introduce a famous book on this topic, and share my own thoughts as well.
