And he has a theory that it is possible -- it is possible -- that the human auditory system actually evolved to hear music, because it is so much more complex than it needs to be for language alone.
他有一个理论： 有这么一种可能， 人类的听觉系统其实是 为听到音乐而进化发展的， 因为如果只是为了听到语言的话， 听觉系统就没必要如此复杂。