Talk:Mere addition paradox

"He does not have a solution"??? Before I read the last two paragraphs, I thought "gee, that's easy to explain, hardly worth being called a paradox." It's a typical apples-and-oranges thing. By saying A+ is no worse than A, he just considers the total amount of happiness (because the average person's happiness in the population is in fact reduced). And if you just want to maximize the total amount of happiness, then of course B is better than A (and so is Z). Nothing paradoxical about it. But if you want to maximize the average happiness, then A+ is already worse than A. --Wik 23:33, Sep 6, 2003 (UTC)

But this is where the mere addition comes in. The mere addition of people to group A, to get A Plus, can't be bad, since the people in the 1st group are still just as happy - the addition of a second group can't possibly make things worse, surely? This is a reason for rejecting the principle of average happiness, if nothing else... Evercat 23:37, 6 Sep 2003 (UTC)

It may not make things worse for the first group, but why just consider them? Considered as a whole, A+ is definitely worse than A. The average happiness of the population decreases. If that doesn't matter, and you want to maximize the total sum of happiness instead, then Z is indeed best. Whether you prefer one goal or the other (or some weighted combination of the two) is a subjective matter, but in this "paradox" the goals are incoherently mixed. First it is assumed that an increase in total happiness (despite a decrease in the average) is preferable, and in the end the opposite is suggested. --Wik 23:55, Sep 6, 2003 (UTC)

Well, if you're happy believing that a huge population of only slightly happy people is better than a small population of really happy people, be my guest. :-)

Or, if you're happy believing that a world with a very happy group and a moderately happy group is worse than a world with only the very happy group, be my guest.

But I (as well as most people, I'd have thought) am not happy believing either... Evercat 23:59, 6 Sep 2003 (UTC)

Well, if you're happy with your paradoxical beliefs, be my guest. But if you set coherent goals, which may of course be more complex than just one of the two extremes, you won't have a paradox. --Wik 00:10, Sep 7, 2003 (UTC)

Heh. I'm not trying to set goals - all I'm doing is accepting that:

The mere addition of people whose lives are worth living cannot make things worse (or "is not a bad thing")
Increasing average happiness (by "redistribution" of happiness) cannot make things worse (or "is not a bad thing")

I think both these claims are reasonable; but they do lead to the Repugnant Conclusion. Evercat 00:16, 7 Sep 2003 (UTC)

Well, I for one don't think it's reasonable at all. It is flat out contradictory. The first thing makes things worse for the population as a whole, and the second makes things worse for those individuals who lose in the redistribution. If you consistently apply either an individual or a global view, one of the two will be a bad thing. --Wik 00:49, Sep 7, 2003 (UTC)

To the first case - suppose there exists just one person in the world, but he is absurdly happy. Is it actually a bad thing for God to create a trillion more people, all of whom will be slightly less happy (but nevertheless extremely happy)? I really can't accept this.

To the second case - while the redistribution does make some people worse off, this is more than offset by the gain to the others. So I don't see how this can be a bad thing either.

We can of course just accept the Repugnant Conclusion. Evercat 01:03, 7 Sep 2003 (UTC)

Note also that you can increase the average happiness of a group by killing all the sad people, as practiced by Monty Python's King Otto. -- The Anome 00:19, 7 Sep 2003 (UTC)

Another reason to reject the idea that average happiness is all that matters. Evercat 01:03, 7 Sep 2003 (UTC)

This assumes that happiness is a scalar quantity, that is, that it'd make sense to say things like "Person A is twice as happy as Person B", or "People A and B summed together are as happy as people C and D". My belief is that this makes no sense.