The Optimist's Barn

Long-form essays, commentaries, and reviews that set out to unsettle the many unexamined assumptions upon which contemporary environmental thought is predicated.

Using data and research to understand what really makes a difference

The history of technology and the philosophy of progress—a digest of posts from rootsofprogress.org

New and underrated ideas to improve the world. Visit our website: worksinprogress.co

P(A|B) = [P(A)*P(B|A)]/P(B), all the rest is commentary.

Science and technology for a flourishing future.