Illano comments on Harry Potter and the Methods of Rationality discussion thread, July 2014, chapter 102 - Less Wrong

7 Post author: David_Gerard 26 July 2014 11:26AM

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Comment author: Illano 29 July 2014 01:31:37PM 3 points [-]

But the net average quality of life is increased overall.

I'm not sure this necessarily holds true. In very broad strokes, if the quality of life is increased by X for a single immigrant, but having that immigrant present in the country decreases the quality of life for the existing population by more than X/population, then even if a specific immigrants quality of life is improved, it doesn't mean that the net average quality of life is increased overall.

Comment author: jbay 29 July 2014 02:35:54PM 0 points [-]

Yes..... you may be right, and it is a compelling reason, for example, not to admit terrorists into a country.

I suppose that if a particular individual's admission into the country would depress the entire country by a sufficient amount, then that's a fair reason to keep them out, without worrying about valuing different peoples' utilities unequally.