A runaway trolley is hurtling down the tracks toward five people who will be killed if it proceeds on its present course. You can save these five people by diverting the trolley onto a different set of tracks, one that has only one person on it, but if you do this that person will be killed. Is it morally permissible to turn the trolley and thus prevent five deaths at the cost of one?
Now consider a slightly different dilemma. Once again, the trolley is headed for five people. You are on a footbridge over the tracks next to a large man. The only way to save the five people is to push this man off the bridge and into the path of the trolley. Is that morally permissible?
Het 'grappige' is dat het overgrote deel van de mensen op dilemma 1 ja zegt, dood die ene man maar om de 5 andere te redden, maar dat ze dat bij dilemma 2 meestal nee zeggen, terwijl de uitkomst toch precies hetzelfde is. Wat zou jij doen?