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by ClayShentrup
1348 days ago
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later-no-harm is a bug not a feature. it's the whole reason IRV is so vulnerable to tactical voting. https://clayshentrup.medium.com/later-no-harm-72c44e145510 for instance, alaska just elected peltola even though begich was preferred to peltola by a large 5% margin. palin voters preferred begich to peltola 10-to-1. but IRV ignored their 2nd choices. therefore they would have been better off strategically ranking begich as their favorite. whereas with approval voting, once they cast a strategic vote for begich, it's safe to approve palin (and anyone else they prefer to their lesser evil). this is, in a nutshell, why score voting and approval voting (rated, not ranked, methods) are so superior. this is social choice theory 101. https://electionscience.org/commentary-analysis/rcv-fools-pa... |
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