SamuelRSmith said:
Source: BBC
1. SHOULD WE KILL HEALTHY PEOPLE FOR THEIR ORGANS?
Suppose Bill is a healthy man without family or loved ones. Would it be ok painlessly to kill him if his organs would save five people, one of whom needs a heart, another a kidney, and so on? If not, why not?
Consider another case: you and six others are kidnapped, and the kidnapper somehow persuades you that if you shoot dead one of the other hostages, he will set the remaining five free, whereas if you do not, he will shoot all six. (Either way, he'll release you.)
In this situation I think it best to try to shoot the kidnapper :)
If in this case you should kill one to save five, why not in the previous, organs case? If in this case too you have qualms, consider yet another: you're in the cab of a runaway tram and see five people tied to the track ahead. You have the option of sending the tram on to the track forking off to the left, on which only one person is tied. Surely you should send the tram left, killing one to save five.
Hmmm... I think just hope for the best... that's the best I can come up with.
But then why not kill Bill?
2. ARE YOU THE SAME PERSON WHO STARTED READING THIS ARTICLE?
In the end, then, no attempt to make sense of your continued existence over time works. You are not the person who started reading this article.
I think that depends on what is meant exactly by "person". If one decides that a person's cells make them that person, then realizes that cells are completely different at some point in time may think to himself "Well that can't be the right definition. He's still the same person" means by "person" something else than just cells, so he didn't really define person strictly to mean that. If one did, then no, one is not the same person.
3. IS THAT REALLY A COMPUTER SCREEN IN FRONT OF YOU?
Perhaps so, but the analogy fails. For you cannot independently check your senses. You cannot jump outside of the experiences they provide to check they're generally reliable. So your senses give you no reason at all to believe that there is a computer screen in front of you."
Agreed. Senses are useless by themselves.
4. DID YOU REALLY CHOOSE TO READ THIS ARTICLE?
Suppose that Fred existed shortly after the Big Bang. He had unlimited intelligence and memory, and knew all the scientific laws governing the universe and all the properties of every particle that then existed. Thus equipped, billions of years ago, he could have worked out that, eventually, planet Earth would come to exist, that you would too, and that right now you would be reading this article.
After all, even back then he could have worked out all the facts about the location and state of every particle that now exists.
And once those facts are fixed, so is the fact that you are now reading this article. No one's denying you chose to read this. But your choice had causes (certain events in your brain, for example), which in turn had causes, and so on right back to the Big Bang. So your reading this was predictable by Fred long before you existed. Once you came along, it was already far too late for you to do anything about it.
Now, of course, Fred didn't really exist, so he didn't really predict your every move. But the point is: he could have. You might object that modern physics tells us that there is a certain amount of fundamental randomness in the universe, and that this would have upset Fred's predictions. But is this reassuring? Notice that, in ordinary life, it is precisely when people act unpredictably that we sometimes question whether they have acted freely and responsibly. So freewill begins to look incompatible both with causal determination and with randomness. None of us, then, ever do anything freely and responsibly."
Agreed. If all there is is the physical realm, free will is impossible.
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