Long Now Demonstration Clock

The Long Now Demonstration Clock, often referred to as the 10,000 Year Clock, is a large-scale, mechanical timepiece designed to keep time for ten millennia. Built into a mountain in West Texas, it serves as a symbol of long-term thinking and sustainability. Its purpose is to encourage people to consider the impact of their actions on the distant future, making a statement about the importance of stewardship of our planet. The clock ticks once a year, with a deep chiming sound every millennium, reminding us that our choices today affect generations to come.