Psychologist Michael McCullough joins the show to talk forgiveness, punishment, and how we came to care about the welfare of people we don't know. Also: a listener calls out our dubious math.

Special Guest: Michael McCullough.

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Links:

• Broad Reach - Stonehooker Brewing Company
• Stone IPA | Stone Brewing
• Megadeth Beer
• Torpedo - Citrus, Pine & Floral IPA | Sierra Nevada Brewing Co.
• Tuesday - Burdock - Untappd
• Michael McCullough
• The Kindness of Strangers: How a Selfish Ape Invented a New Moral Code
• Maxence Cyrin - Where is my mind