The document discusses four variations of the classic "Trolley Problem" moral dilemma. In each scenario, the reader must make a choice that will directly lead to someone's death or multiple someones' deaths. While the numbers seem to indicate the same utilitarian outcome each time, people's moral instincts tend to view pushing someone in front of a trolley as less permissible than flipping a switch to change the trolley's path. The document questions why our views differ on these cases that have similar utilitarian calculations.

1. The Trolley Problem

2. Trolley Problem A: “Bystander”

4. Trolley Problem B: “Transplant”

6. Trolley Problem C: “Drug”

8. Trolley Problem D: “Fat Man”