You’ll be hit by two big things: (1) Despite the nonstop stream of depressing news, the world is actually getting to be a better place—cleaner, more prosperous, less violent. (2) By pursuing commonsensical, cost-effective programs to battle the troubles still plaguing our planet, we can achieve a level of prosperity and quality of life for all that would have been deemed utterly unattainable only a few years ago. You’ll be heartened and inspired by much of what you hear in our absorbing conversation.