yes - and you gave good examples of thought experiments. In a
   proper context, they're very useful. They become dangerous when
   affecting public policy or deciding real-world truth values,
   because the real world isn't a thought experiment. It's the real
   world. I didn't study ethics formally and I enjoy puzzling over
   ethical dilemmas but I always followed a similar system: Weigh
   it out. Look at all factors you can possibly consider and work
   through them all.