A votes-only FARCS approach would completely obscure the purpose and benefit of the majority defensive strategy criteria, thereby defeating their purpose.

A criterion would be of little use if its wording didn’t express its important guarantees.

That was the purpose of this posting, but I might as well add this:

By the way, Sincere Favorite could be worded to not mention ranking, and therefore doesn't need FARCS. SF is oddly mis-named, given its votes-only purpose. It's useful as an approximation test for expectation FBC, easier to meet and easier to test for. Probably any expectation FBC failure that isn't an SF failure isn't a failure that matters. If someone needs perfect predictive knowledge in order to benefit from favorite-burial, then it doesn't seem a problem. Ignorant favorite-burial is the problem.

SF ia an approximation to expectation FBC, and sometimes a useful one. But SF certainly can’t replace expectation FBC. For one thing, SF doesn’t apply to Plurality, IRV, or any other method that doesn’t allow two candidates to be voted over all the others, without voting either of those two over the other.

Maybe there’s some FARCSish way to make SF apply to such methods, but you know what I say about FARCS.

Another problem is that increasing the probability that one of your top-voted two candidates will win is not always the same as increasing your expectation.

Mike Ossipoff


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