"What's the worst that can happen?" goes the optimistic saying. It's probably a bad question to ask anyone with a creative imagination. Let's consider the problem on an individual level: it's not really the worst that can happen, but would nonetheless be fairly bad, if you were horribly tortured for a number of years. This is one of the worse things that can realistically happen to one person in today's world.
What's the least bad, bad thing that can happen? Well, suppose a dust speck floated into your eye and irritated it just a little, for a fraction of a second, barely enough to make you notice before you blink and wipe away the dust speck.
For our next ingredient, we need a large number. Let's use 3^^^3, written in Knuth's up-arrow notation:
- 3^3 = 27.
- 3^^3 = (3^(3^3)) = 3^27 = 7625597484987.
- 3^^^3 = (3^^(3^^3)) = 3^^7625597484987 = (3^(3^(3^(... 7625597484987 times ...)))).
3^^^3 is an exponential tower of 3s which is 7,625,597,484,987 layers tall. You start with 1; raise 3 to the power of 1 to get 3; raise 3 to the power of 3 to get 27; raise 3 to the power of 27 to get 7625597484987; raise 3 to the power of 7625597484987 to get a number much larger than the number of atoms in the universe, but which could still be written down in base 10, on 100 square kilometers of paper; then raise 3 to that power; and continue until you've exponentiated 7625597484987 times. That's 3^^^3. It's the smallest simple inconceivably huge number I know.
Now here's the moral dilemma. If neither event is going to happen to you personally, but you still had to choose one or the other:
Would you prefer that one person be horribly tortured for fifty years without hope or rest, or that 3^^^3 people get dust specks in their eyes?
I think the answer is obvious. How about you?
Recovering: chuckles no, I meant thinking about that, and rethinking about what the actual properties of what I'd consider to be a reasonable utility function led me to reject my earlier claim of the specific nonlinearity that lead to my assumption that as you increase the number of people that recieve a spec, the disutility is sublinear, and now I believe it to be linear. So huge bigbigbigbiggigantaenormous num specks would, of course, eventually have to have more disutility than the torture. But since to get to that point knuth arrow notation had to be invoked, I don't think there's any worry that I'm off to get my "rack winding certificate" :P
But yeah, out of context this debate would sound like complete nonsense... "crazy geeks find it difficult to decide between dust specks and extreme torture."
I do have to admit though, Andrew's comment about individual living 3^^^3 times and so on has me thinking again. If "keep memories and so on of all previous lives = yes" (so it's really one really long lifespan) and "permanent physical and psychological damage post torture = no") then I may take that. I think. Arrrgh, stop messing with my head. Actually, no, don't stop, this is fun! :)