english: All right, it's nice that babies will generalize properties of blue balls to yellow balls, and it's impressive that babies can learn from imitating us, but we've known those things about babies for a very long time.
non_english: Oké, het is leuk dat baby's eigenschappen generaliseren van blauwe naar gele ballen, en het is indrukwekkend dat baby's kunnen leren door te imiteren, maar die dingen wisten we al heel lang.