Comment by fouc

from the wikipedia on the trolley problem this is mentioned:

> In 2017 a group led by Michael Stevens, a YouTuber known for his brand Vsauce, performed the first realistic trolley-problem experiment. Subjects were placed alone in what they thought was a train-switching station, and shown footage they believed to be real (but was pre-recorded) of a train going down a track, with five workers on the main track, and one on the secondary track; the participants had the option to pull the lever to divert the train toward the secondary track. Five of the seven participants did not pull the lever.[28][29]

That means in real life it's going to be closer to 0.286 (2/7) than 0.75. Human ethics likely can only be accurately derived from paying attention to the instinctive reactions over survey-based approach.