You know those good deeds you do for others and others do for you?  What if somebody told you that every one of those acts is actually selfishness in disguise?  Well, that’s what some scholars think about altruism, and it rubs Mark the wrong way, so he asked Joe about it.  Join Joe and Mark as they examine whether altruism exists and the reasons why it need not be subject to a purity test. (Recorded January 7, 2022.)