If it's worth saying, but not worth its own post, then it goes here.
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How else would it work? Where is the decision going to come from that Omega can't see?
I don't know how else it would work. But I also don't know how it could work in the first place, so that doesn't tell us much. Omega doesn't (as far as I know) actually exist, so "it doesn't work at all" is a justifiable answer as well.
There's only so much you can learn about the actual universe from thought experiments.