But on the other hand, why do we have to find this thing? Just wait a little while, the theories will change, and it will either wink out of theoretical existence, or be well-defined enough by the things around it. And if there’s a chance, even a slight one, that finding this thing might cause a black hole, even a small one — our M.O. is that we do things because we can do them, not because we stop to consider whether we should. Since we’re now the default stewards of the planet, which has shrunk from a wilderness to a terrarium near the window, maybe it’s time to start asking “why” as often as “how.”