From time to time the bars need be removed, the enclosures broadened. Zoo Chow, easy and cheap as it is, must give way, at least some of the time, to lively, challenging mental prey. Biodiversity is a fundamental principle of life on our planet. It allows life to adapt to change. In our culture highly gifted children, like cheetahs, are endangered.
Schools can do the same for their highly gifted children.
Unless we make a commitment to saving these children, we will continue to lose them and whatever unique benefit their existence might provide for the human species of which they are an essential part.