What is the failure rate of empathy? Surely it is among the most powerful forces in human motivation, but no one would say that it works every time. So what is empathy’s average? .750? .250? Ted Williams batted .344, and he’s in the hall of fame. It would not be ridiculous to suggest that even a top-shelf impulse like compassion wins fewer than half the days. Are we prepared to accept that for every anonymous kidney donor, two people crowd the gate before their boarding group is called? Today is Friday, and that which makes us human only works some of the time. Won’t you grudgingly share resources with me?