The Repugnant Conclusion

I'm a totalist but obviously you can keep going making the world larger and dropping the level of pleasure and then you end up at the repugnant conclusion which is a little harder to swallow. I would still like somebody to turn up with a coherent consistent theory that answers questions about when it's good to bring extra people into existence and when it's bad. Parford never found one because there was a posthumously published paper in which he put forward some suggestions which I don't find totally convincing.