Jeff Bezos and the Long Now Foundation's 10,000-year clock.

Jeff Bezos and the Long Now Foundation's 10,000-year clock.: "The name “10,000-year clock” is no exaggeration. Bezos and the other members of the Long Now Foundation intend to build a clock that runs for 10,000 years—with little to no human intervention and no practical purpose. As a concept, the clock is meant to raise questions about the long-term goals of civilization and what it means to be “good ancestors.”"