David Siegel is a man with a message. His Deep Optimism Manifesto spells out a new approach to viewing the world that is at once realistic and optimistic. Written last year, its message is timeless and timely. His opening quotation comes from Julian Simon’s essay in The State of Humanity, p. 642. I am writing … Continue reading ‘Deep Optimism Manifesto’ (David Siegel’s cure for ‘climate anxiety’)