The hook: I needed to look up The Trolley Problem. (Go to that link if you are unfamiliar with the Trolley Problem, or better, find the episode of The Good Place about the Trolley Problem.)
What I learned: DID YOU KNOW someone simulated the trolley problem on actual people? No lie, he put people in that situation and then watched to see what they'd do, either a) let five people die or b) make one person die.
It's disturbing in that no one really seems to be experiencing an ethical dilemma.