We put a call out there, and to my surprise in a couple of months we had hundreds of entries from around the world.

To my surprise, eliminating net CO2 emissions from the economy in just 20 years is actually pretty easy and pretty cheap, not very cheap, but certainly less than the cost of a collapsing civilization.

And to my astonishment, when I began seriously studying other traditions, I began to realize that belief which we make such a fuss about today is only a very recent religious enthusiasm that surfaced only in the West, in about the 17th century.