If you'd asked people this 30 years ago, most people, including psychologists, would have said that this baby was irrational, illogical, egocentric -- that he couldn't take the perspective of another person or understand cause and effect.
如果你在30年前问这个问题， 大多数人，包括心理学家， 会告诉你这个小孩没有理性的， 没逻辑, 以自我为中心—— 他不会站在他人的角度思考 或者不明白因果关系。