Museums for Rebooting Civilization

"You don't see the point of a museum, Horst. It's for the next rise in the Cycles. Savages come to put together another civilization. The faster they can do it, the longer it'll be before another collapse because they'll be expanding their capabilities faster than the population. See? So the savages get their choice of a number of previous civilizations, and -the weapons to put a new one into action. You noticed the lock?" "I did," said Potter. "You need some astronomy to solve it. I presume...