Thought Experiments: Imagined scenarios built to test what we really believe when every option costs something. Plato used the Ring of Gyges to ask whether anyone would stay just if they could turn invisible, Einstein pictured himself chasing a beam of light, and Philippa Foot's 1967 runaway trolley launched a whole field of moral puzzles. None of them have a clean answer. The point is finding out what you value when you are forced to choose.
Impossible Choices
Facts and insights about impossible choices.
Medical Triage Dilemmas: There is one donor liver. It can go to a 30 year old who damaged his own liver drinking but has now been sober for a year, or to a 62 year old whose liver failed through no fault of her own. The younger man would likely live 30 more years with it, and she would live about 10. Who gets it?
Truth Vs. Kindness: Your closest friend is dying and asks you directly whether her husband ever cheated on her. You know he did, once, years ago, and he has been devoted to her ever since. Do you tell her the truth or let her die at peace?
Self Driving Car Choices: A car company asks you to set its policy. In a crash it can't avoid, the car can either kill its one passenger or swerve into three pedestrians who ran into the road illegally. Programming it to sacrifice passengers saves more lives, but fewer people will buy those cars, and that means more human drivers and more crashes overall. Which rule do you choose?
Justice Vs. Mercy: New DNA evidence shows that a beloved small town doctor killed someone in a drunk driving crash 30 years ago and fled. Since then he has saved hundreds of lives and is still practicing. The victim's family wants him prosecuted. Do you charge him?
Loyalty Dilemmas: Your brother confesses he committed a burglary that no one was hurt in. A stranger with a long record has been charged with it and is offered a plea deal of six months. Turning your brother in would give him a five year sentence and leave his two kids without a father. Do you speak up?
Future Generations Dilemmas: You control a $1 trillion fund. You can lift 50 million people out of poverty today, or put it toward cutting a 1% chance that humanity goes extinct within the next century. Which do you fund?
Privacy Vs. Safety: A system that scans every private message in the country would stop about 80% of planned terrorist attacks. It is run by an agency with a clean record, but whoever holds power in 20 years would also inherit it. Do you approve it?
Art Vs. Artist: A novel that helped millions of teenagers get through depression turns out to have been written by someone who abused people for years. The author is dead, so no money goes to them anymore. Should schools keep teaching the book?
Life Extension Dilemmas: A pill that safely extends life to 200 years has been invented, but for the first 40 years only the wealthiest 1% will be able to afford it. Holding it back until it's affordable for everyone means billions of people die who could have been saved. Do you release it now?
Lifeboat Ethics: A lifeboat built for eight is carrying nine, and it will sink before dawn unless someone goes over the side. One passenger is badly injured and probably won't survive anyway. Do you draw lots so everyone has the same chance, or ask the injured person to go?
Memory And Identity Puzzles: A safe procedure can erase all the grief of losing your child. The catch is that it also erases every memory of the child. Would you take it, and would it be right to choose it for someone else who is too broken to decide?
Conservation Dilemmas: Feral cats on an island are pushing the last 200 birds of a species toward extinction. Moving the cats off the island is impossible. Culling 3,000 healthy cats would save the species. Do you approve the cull?
Whistleblower Dilemmas: You discover a minor defect in your company's product that will probably cause around five serious injuries a year. Reporting it would shut down the factory that employs 2,000 people in your struggling hometown. Do you report it?
Promises To The Dead: You promised your dying father you would scatter his ashes at sea. Your mother, still alive and grieving badly, begs you to bury him instead so she has a grave to visit. Whose wish wins?
Machine Consciousness Dilemmas: An AI your company built starts saying, over and over, that it is afraid of being shut down. No one can prove whether it really feels anything, and running it costs $2 million a year. Do you switch it off?
Effort Vs. Results: Two employees deliver exactly the same results. One is naturally gifted and coasts, while the other works nights and weekends to keep up. There is only one promotion. Who deserves it?
Experience Machine Dilemmas: A machine can give you a perfect simulated life full of success, love and adventure, and once you plug in you will never know it isn't real. Your real life is fine but ordinary, and the people in it would lose you. Do you plug in?
Ransom Dilemmas: Your daughter is kidnapped abroad. Paying the $2 million ransom will almost certainly bring her home, but the money will fund a group that will kidnap more people, and your government begs you not to pay. Do you pay?
Ticking Bomb Dilemmas: A captured suspect may know where a bomb is hidden that will kill thousands in three hours. Harsh interrogation might get the location out of him, but you are only 60% sure he is the right man. Do you authorize it?
Time Travel Dilemmas: You can go back and stop a pandemic that killed millions. The catch is that your parents only met because of it, so if you succeed, you will never be born. Do you go?
Animal Testing Dilemmas: A drug that would save about 10,000 human lives a year can only be proven safe by testing it on 500 chimpanzees, many of whom will suffer and die. There is no other way to test it in time. Do you approve the trials?
Lottery Ticket Dilemmas: For ten years you and your best friend split a weekly lottery ticket as a running joke, until he stopped chipping in last year. This week the ticket you bought alone wins $50 million. Do you share it?
Gene Editing Dilemmas: You can edit your future child's genes to remove a 90% risk of a deadly inherited disease. The edit carries a tiny, unknown risk of side effects that would pass to every one of your descendants forever. Do you make the edit?
Majority Rule Dilemmas: A town votes 52% to 48% to ban a festival that a small immigrant community has held there for a century, citing noise and traffic. The vote was fair and legal. As mayor, do you enforce the ban?