https://www.10000yearclock.net/learnmore.html
“He wanted to build a Clock that ticks once a year, where the century hand advances once every 100 years, and the cuckoo comes out on the millennium. The vision was, and still is, to build a Clock that will keep time for the next 10,000 years. I’ve been helping Danny with the project for the last half dozen years. As I see it, humans are now technologically advanced enough that we can create not only extraordinary wonders but also civilization-scale problems. We’re likely to need more long-term thinking.”
“Carved into the mountain are five room-sized anniversary chambers: 1 year, 10 year, 100 year, 1,000 year, and 10,000 year anniversaries. The one year anniversary chamber is a special orrery. In addition to the planets and the Earth’s moon, it includes the interplanetary probes launched during the 20th century. The Clock will activate and run the orrery once a year on a pre-determined date at solar noon. We aren’t planning to build the animations for the 100, 1,000, and 10,000 year anniversary chambers”
So, after we all die, this weird clock will still be ticking and a cuckoo will come out in 1000 years? I guess when you are worth $150 billion, this is the kind of thing you need to do to keep yourself entertained.