> The idea that we need to land on the moon once a generation just to say that we are as good at landing on the moon as our parents is absurd. In the sense tha

> The idea that we need to land on the moon once a generation just to say that we are as good at landing on the moon as our parents is absurd. In the sense that we don't need to do either, that's true. But if we want to claim we're still competent moon landers, we do need to repeat the task every once in a while to keep that capability. And there are good scientific benefits from continuing to do difficult space launches of many types.