Return guest Simplicity Institute founder Dr Samuel Alexander ponders whether the environment can survive the human brain's emotional biases, and what can the environmental movement can do to get a message out in a 'post-truth' era? And we talk lessons from the dirty ol' bastard of ancient greek philosophers: Diogenese. Sam's latest books are Just Enough is Plenty: Thoreau's Alternative Economics and Deface the Currency: The Lost Dialogues of Diogenes. He also mentions The Dark Cellars Project in which artists submit images that make the messages of voluntary simplicity a bit more visceral and visual. Return guest Simplicity Institute founder Dr Samuel Alexander ponders whether the environment can survive the human brain's emotional biases, and what can the environmental movement can do to get a message out in a 'post-truth' era? And we talk lessons from the dirty ol' bastard of ancient greek philosophers: Diogenese. Sam's latest books are Just Enough is Plenty: Thoreau's Alternative Economics and Deface the Currency: The Lost Dialogues of Diogenes. He also mentions The Dark Cellars Project in which artists submit images that make the messages of voluntary simplicity a bit more visceral and visual.