Whether you’re a murderer depends on whether you caused the situation, i.e. tied the five to the tracks. If you discover the situation (not having caused it) and then do nothing and don’t save the five, you’re not a murderer. Once you discover the situation, you should save whomever you value more. If the fat man is your friend, you should save him, if everyone is a stranger, then you should save the five and kill the fat man.
What if there are no five people on the track but a cat and I just happen to value the cat more than the fat man? Should I push him? If not, what makes that scenario different, i.e. why does it matter if a human life is at stake?
You should save whatever you value more, whether it’s a human, a cat, a loaf of bread (if you’re a kind of being who really really likes bread and/or doesn’t care about human life), or whatever.
Whether you’re a murderer depends on whether you caused the situation, i.e. tied the five to the tracks. If you discover the situation (not having caused it) and then do nothing and don’t save the five, you’re not a murderer. Once you discover the situation, you should save whomever you value more. If the fat man is your friend, you should save him, if everyone is a stranger, then you should save the five and kill the fat man.
What if there are no five people on the track but a cat and I just happen to value the cat more than the fat man? Should I push him? If not, what makes that scenario different, i.e. why does it matter if a human life is at stake?
You should save whatever you value more, whether it’s a human, a cat, a loaf of bread (if you’re a kind of being who really really likes bread and/or doesn’t care about human life), or whatever.