Moral Philosophy in Practice

The trolley problem has spawned an entire subfield of experimental philosophy. Researchers present variations to thousands of participants across cultures to map the hidden structure of human moral intuition.

Consistent findings include: people weight harm by physical directness, distinguish between action and inaction, respond differently to identified versus statistical victims, and care whether harm is a means or a side effect.

These intuitions do not form a coherent theory. They are the trolley problem's lasting contribution: making our inconsistency visible.