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The Long Now Foundation was established in 01996 to foster long-term thinking and responsibility in the framework of the next 10,000 years. Read More...

Upcoming Seminars About Long-term Thinking

Dec 10     Rick Prelinger

The Castro Theater
Tue, Dec 10, 02019 @ 7:30PM PT
live video stream available.

Discount Code for Members   Sign In.

  “Lost Landscapes of San Francisco, 14”

Jan 15 Bina Venkataraman “Long-Term Thinking in a Distracted World”      View All Seminars

The 10,000 Year Clock

A monument scale, multi-millennial, all mechanical
clock as an icon to long term thinking.

Continue to the Introduction

Building an Archive of ALL Documented
Human Languages. Browse the interactive disk online and contribute to the archive.

A public arena for enjoyably competitive predictions, of interest to society, with philanthropic money at stake.

Long Now's unique bar, cafe, museum, library, event space. Open in San Francisco 10 a.m. to midnight, 7-days a week.