From psychedelics to cyberculture, hippie communes to commercial startups, and the Whole Earth Catalog to the Long Now Foundation, Stewart Brand has not only been a part of many movements—he was there at the start. Now 83, he says he doesn’t understand why older people let their curiosity fade, when in many ways it’s t

The former Merry Prankster and Whole Earth Catalog founder talks about psychedelics, computers, bringing back woolly mammoths, and his new documentary.

Over six consecutive decades, Stewart Brand has impacted society, tech and science in outlandishly diverse ways. This truly unhurried conversation explores the scope of his intensely original American life.

Stewart Brand (@stewartbrand) is the president of The Long Now Foundation, established to foster long-term thinking and responsibility. He leads a project called Revive & Restore, which seeks to bring back extinct animal species such as the passenger pigeon and woolly mammoth. Stewart is very well known for founding, e

Aired 11/08/09 STEWART BRAND's Whole Earth Catalog introduced millions to new ways of thinking and doing and probably contributed to the birth of environmentalism in the US. Confronting today's challenges to global civilization in his new book, Brand questions environmental positions against GMO foods, Geo-engineering,