For years I have been making use of a plane crash example to illustrate the moral distinction between killing people and letting people die and the results have always been the same, at least until this past week. Before getting to that, I will briefly present the examples.
I usually open my discussion of utilitarianism by noting that people tend to have utilitarian intuitions in many cases, such as those involving emergency medial treatment. My stock example is as follows:
“Imagine that you are the only available doctor on an island when a plane crashes with six people on board. You have no idea who these people are-they literally fell from the sky. Examining the people, you know that if you try to save the badly injured pilot, you will lose 3-4 of the others for sure. But, if you allow the pilot to die, you are certain you can save at least four of the passengers, maybe even five. What do you do?”
As you might suspect, everyone always says something like “save the five because five is more than one.”
When transitioning to my discussion of rule-deontology, I make the point that sometimes our intuitions seem to steer us away from just the consequences to also considering the action itself. To illustrate this intuition, I change the story just a bit:
“Imagine that you are the only available doctor on an island when a plane crashes with five people on board. You have no idea who these people are-they literally fell from the sky. To save them, you need a lot of blood and you need it fast. Coincidentally, Ted the hermit has come in for his yearly checkup. Ted has no friends or relatives and no one checks up on him. By a truly amazing coincidence Ted’s blood type means that he can donate to all five people. Unfortunately, getting enough blood to save all five will kill Ted. What do you do?”
For years, my students have said that killing Ted even to save five people would be wrong and I fully expected my current students to give the same answer. But, rather than the usual “that would be wrong”, I was met with silence. So, I asked again and two students said that they’d drain Ted. When I said that this was the first class that ever said that, the reply was “times have changed.”
I’m not quite sure what the significance of this might be, but it was certainly interesting.