Chris--
Plurality passes Non-Drastic Defense. Suppose that
"to rank" means " to rank in a rank-balloting system". In that case, no one can write a Plurality example that complies with the premise of Non-Drastic Defense. That means that no one can write a Plurality NDD failure example, and that Plurality passes NDD.
Yes, and by that logic, so does a pork chop.
I reply:
Yes, but, since Plurality, IRV, and Margins all fail SFC, GSFC, WDSC, SDSC, and FBC, they all do worse than a pork chop.
But yes, you're right that meeting a criterion just by being exempted by its premise isn't a very meritorious way to meet a criterion. Condorcet wv meets the majority defensive strategy criteria by the fact that when examples are written that meet those criteria's premises, wv meets their reqiurements.
But even if a pork chop doesn't fail criteria, by virtue of not being a voting system, it still has the disadvantage that it wouldn't really help with voting.
Mike Ossipoff
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