translation.en: [Neurogenesis] Now Robert is not a neuroscientist, and when he went to medical school he was not taught what we know now -- that the adult brain can generate new nerve cells.
translation.zh: [神经生成] 罗伯特不是一名脑神经科学家， 当他在医学院上学的时候 并没有学到我们现在所知道的 成人大脑能够生成新的神经细胞。