The Amazon founder tweeted video footage of a massive 10,000-year clock that's being built inside a West Texas mountain. The 500-foot-tall clock, which runs on the world's thermal cycles, has been in production for the past 30 years, Bezos wrote in a blog post. It ticks once a year, and the cuckoo comes out on the millennium.
"It's a special clock, designed to be a symbol, an icon for long-term thinking," Bezos said in the blog post. "As I see it, humans are now technologically advanced enough that we can create not only extraordinary wonders but also civilization-scale problems."
Engineer and inventor Danny Hillis originally conceptualized the project in 1989, and Bezos said he's been assisting for the past six years.