Arrow's Theorem (2014)

Re:Arrow's Theorem (2014) by dnautics on Friday November 10, 2017 @08:49PM (#15674556)

I find this is one of the best videos on the subject:

https://www.youtube.com/watch?v=tJag3vuG834

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Re:Arrow's Theorem (2014) by throwaway613834 on Friday November 10, 2017 @10:41PM (#15674878)

Great video except that it's misleading at the end. Arrow's theorem is only about rank-order voting. But if e.g. you can express your preferences as numbers (e.g. if you can state your preferences as 10% strawberry, 30% vanilla, and 60% chocolate) then it no longer applies.

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Re:Arrow's Theorem (2014) by Bromskloss on Saturday November 11, 2017 @12:35AM (#15675146)

Indeed. It seems that those voting systems too can be proven [0] to have these problems, though.

[0] https://politics.stackexchange.com/questions/14015/does-gibb...

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Re:Arrow's Theorem (2014) by throwaway613834 on Saturday November 11, 2017 @12:47AM (#15675173)

Holy hell, that is mindblowing. Thank you for sharing this.

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Re:Arrow's Theorem (2014) by carl_corder on Friday November 10, 2017 @09:14PM (#15674624)

This video really helped me to digest the concept. Thanks for sharing!

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Re:Arrow's Theorem (2014) by spookyuser on Friday November 10, 2017 @09:51PM (#15674736)

Great video, sounds like CGP Grey's twin brother.

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