Obama and his EU counterparts are learning that high-minded adolescence makes for bad governance. But it’s an expensive lesson. Old laws predicated on human nature cannot so easily be discarded — even by utopians who think they have the power to cool the planet and stop the rising seas. Borrowed money really has to be paid back. Governments cannot operate without confidentiality. Nations perish if they cannot protect themselves from existential threats. Watching a therapeutic Barack Obama grow up and learn these tragic lessons is as enlightening as it is sometimes scary.