> On Oct 23, 2018, at 1:14 PM, Tim Peters <tim.pet...@gmail.com> wrote:
>
> [Alex Martelli <al...@google.com <mailto:al...@google.com>>]
> While I suspect most participants are aware of this, just in care some don't
> I thought I'd just point out that it's futile to look for a "perfect" voting
> system -- Kenneth Arrow proved that long ago, see
> https://en.wikipedia.org/wiki/Arrow%27s_impossibility_theorem
> <https://en.wikipedia.org/wiki/Arrow%27s_impossibility_theorem>
>
> Yup! Ping's page acknowledges that explicitly:
Important to note that Arrow’s theorem applies only to ranked or ordinal
systems, cardinal/rated systems are not covered by it (though the larger point
of no perfect system still holds true).
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