From the world-renowned geobiologist and bestselling author of A Brief History of Earth, the epic story of a planetary conversation four billion years in the making.

The scramble to create superhuman AI has put us on the path to extinction—but it’s not too late to change course, as two of the field’s earliest researchers explain in this clarion call for humanity.

A kaleidoscopic and original new history of urbanization—from Lisbon to New York, Paris to Rio de Janeiro, and Buenos Aires to Lagos.

At this Long Now Boston event, Dr. David Barzilai explored a deceptively simple question with profound implications: what happens if we succeed in extending not just lifespan, but healthy lifespan?