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Editorial note: The following debate unfolded organically when moral philosopher Massimo Pigliucci wrote a critical analysis of Michael Shermer’s Scientific American essay on utilitarianism. Shermer responded to Pigliucci, who in turn replied to Shermer’s rebuttal. When the sociologist Kevin McCaffree wrote an analysis of the entire exchange we decided to bundle all articles into this special section of Skeptic:
• You Kant Be Serious: Utilitarianism and its Discontents by Michael Shermer