[Menehune56]

In another nod to the 'how long will civilization last?' debate, the 10,000 Year Clock can be maintained by simple bronze-age technology. That’s predicated on the theory that human societies of the future could easily be more primitive than our own.

[piasa]

That’s also predicated on the theory that future civilizations will want to put effort into maintaining a pointless artifact rather than scrap that sucker like the plumbing at Pruitt-Igoe and sell it.