The thought of pushing the stranger off the footbridge elicits these responses.

This time, however, you are not standing near the track, but on a footbridge above the track.

The only way you can prevent the trolley from killing five people is by pushing this large stranger off the footbridge, in front of the trolley.

The Millennium Bridge was supposed to be the pride of London a beautiful new footbridge erected across the Thames, first river crossing in over 100 years in London.

Greene found that people asked to make a moral judgment about personal violations, like pushing the stranger off the footbridge, showed increased activity in areas of the brain associated with the emotions.

Moreover, the minority of subjects who did consider that it would be right to push the stranger off the footbridge took longer to reach this judgment than those who said that doing so would be wrong.