The title of this post jumped out at me. From a comment of mine, long ago:

Maximize happiness in the individual ... I say, "in the individual", in strong opposition to dust specks. I remain puzzled by why the "shut up and multiply" maxim would not be accompanied by "shut up and divide". (That is, 3^^^3 specks / 3^^^3 individuals = no pain.) I remain open to good arguments to the contrary - I haven't read one yet.

EDIT: That last sentence is no longer true. I regard this comment by Eliezer as the best argument I've seen, and one that still confounds my moral intuitions on specks:

While some people tried to appeal to non-linear aggregation, you would have to appeal to a non-linear aggregation which was non-linear enough to reduce 3^^^3 to a small constant. In other words it has to be effectively flat. And I doubt they would have said anything different if I'd said 3^^^^3.