When the disciples marvel at the impressive physical structure of the Jerusalem temple (“What large stones and what large buildings!”) in this week’s gospel text, their observation implies an expectation that such imposing buildings should last for at least as long as medieval cathedrals have. But Jesus essentially tells the incredulous disciples “Not so fast, my friends” as he warns them: “Do you see these great buildings? Not one stone will be left here upon another; all will be thrown down.”