I don’t think 3 depends on UDT that much? Like, you can call the betting argument in sleeping beauty “a UDT-like reasoning”, but then it’s not like people were convinced either way without UDT. And about it being right, do you mean that it would be practically convenient if there was some logical law that forced our preferences about multiple copies? Because the way I see it, it’s not problematic from philosophical standpoint.
I don’t think 3 depends on UDT that much? Like, you can call the betting argument in sleeping beauty “a UDT-like reasoning”, but then it’s not like people were convinced either way without UDT. And about it being right, do you mean that it would be practically convenient if there was some logical law that forced our preferences about multiple copies? Because the way I see it, it’s not problematic from philosophical standpoint.