Scientific reason is that this notion from neuroscience of critical periods, that if the brain is older than four or five years of age, it loses its ability to learn, that doesn't sit well with me, because I don't think that idea has been tested adequately.
El motivo científico es la idea de la neurología sobre el periodo crítico en el que, si el cerebro tiene más de cuatro o cinco años, pierde la capacidad de aprender. Eso no lo acabo de digerir, porque no creo que esa cuestión se haya comprobado adecuadamente.