Hmm, thinking some more about this, I can see another angle (not the suffering angle, but the “being prudent about unintended consequences” angle):
If you had the choice between very very slightly changing the life of a huge number of people or changing a lot the life of only one person, the prudent choice might be to change the life of only one person (as horrible as that change might be).
Still, with the dust speck we can’t really know if the net final outcome will be negative or positive. It might distract people who are about to have genius ideas, but it might also change chains of events that would lead to bad things. Averaged over so many people, it’s probably going to stay very close to neutral, positive or negative. The torture of one person might also look very close to neutral if averaged with the other 3^^^3 people, but we know that it’s going to be negative. Hmm..
Hmm, thinking some more about this, I can see another angle (not the suffering angle, but the “being prudent about unintended consequences” angle):
If you had the choice between very very slightly changing the life of a huge number of people or changing a lot the life of only one person, the prudent choice might be to change the life of only one person (as horrible as that change might be).
Still, with the dust speck we can’t really know if the net final outcome will be negative or positive. It might distract people who are about to have genius ideas, but it might also change chains of events that would lead to bad things. Averaged over so many people, it’s probably going to stay very close to neutral, positive or negative. The torture of one person might also look very close to neutral if averaged with the other 3^^^3 people, but we know that it’s going to be negative. Hmm..