All empires end. History is heavy with the scattered debris of their crumbling. Some combination of overreach, competition and time brings them all down.  But until now, no empire has ever decided to attack its allies. No empire has ever decided to bolster its enemies. No empire has ever decided to pummel its economy. In short, no empire has ever decided to destroy itself. And the temporary reprieve of Tariff Man can’t undo the long-term destruction of “liberation day”. So, as the world reels from the chaos in Washington, history offers us little. Helpfully, two great thinkers offer us a…