Arrow's Impossibility Theorem - https://news.ycombinator.com/item?id=34842041 - Feb 2023 (7 comments)
Arrow and the Impossibility Theorem (2012) [pdf] - https://news.ycombinator.com/item?id=28988491 - Oct 2021 (24 comments)
Show HN: A Visual Proof of Arrow's Theorem - https://news.ycombinator.com/item?id=24742502 - Oct 2020 (1 comment)
Arrow's Theorem (2014) - https://news.ycombinator.com/item?id=15673909 - Nov 2017 (69 comments)
Arrow's impossibility theorem - https://news.ycombinator.com/item?id=9655846 - June 2015 (84 comments)
Arrow's Theorem - https://news.ycombinator.com/item?id=8448553 - Oct 2014 (36 comments)