I don't think this addresses the point in the link. What happens when you go from specks to something slightly more nasty, like a pinch? Or slightly increase the time it takes to get rid of the speck? You ought to raise the disutility limit. Or if you reduce the length of torture, you have to lower the disutility amount from torturing one person. Eventually, the two intersect, unless you are willing to make a sharp qualitative boundary between two very similar events.
Yes, the two intersect. That's what happens when you make things quantitative. Just because we are uncertain about where two things should, morally, intersect, does not mean that the intersection itself should be "fuzzy."
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