the math theory behind fair democratic elections
2024-Sep-11, Wednesday 07:14 pmI learned something interesting today about democracy. The first time I mentioned ranked choice voting on this blog was back in 2011 during the Occupy movement. I consider it essential to saving democracy in the USA. I've also alluded to the fact that democratic principles (lowercase "d", not like the Democratic party) are strong in Minnesota. I've even used a phrase like "my kind of crazy" during several elections here when talking about non-mainstream candidates available here for me to vote for. (I did it in 2010, 2021, 2022, and 2023.) It turns out that local Minneapolis mayoral politics make a great example of the principle that "instant runoff voting" can benefit society by encouraging new behavior from our political parties and candidates. There's actually math to support my gut feeling.
One of the channels I watch sometimes on YouTube when I want to learn something is Veritasium: An element of truth. They recently produced the video below, examining the history and mathematical theory behind voting in a democracy. How do you achieve fair results that represent the proverbial "will of the people"? I learned a lot from this piece, and I recommend watching all of this 23-minute video.
I think they didn't spend enough time at the beginning of the video dunking on the current election method in the USA. I find our method distasteful and have urged others to follow me in voting with your conscience instead of as a high school pep rally to support your "team" in perpetual 2-party spiral downward on our collective way to disaster. I'm happy to see Minneapolis represented in this video, since I praise Minnesota society occasionally. I really did find a good home for myself here. The video failed to make any judgment on the severity (I think that's the word I want?) of the voting flaw in democracy. The flaws they offer do seem to me like exceptionally rare cases, when considering elections among huge populations of people. How often would these failure modes actually present themselves? I still advocate ranked choice voting. Unfortunately, our Minnesota state and national positions are still single-choice, winner-takes-all voting instead. My sample ballot shows me that I have nine candidates as options for President in November. I intend to make full use of my options, not succumb to the 2-party mythos as some unofficial "requirement" of my voting participation. I do, therefore, need to learn more about these 9 options. (Okay, just 8 choices, since RFK Jr has already dropped out to endorse Trump.)
Now, however, I need to learn more about this newfangled "rated voting system", since it seems to be even better at avoiding the flaws of democratic voting. I mean, if it was good enough to elect popes (for over 1/4 millennium) and the United Nations' Secretary General, then maybe it's good enough for the rest of us plebeians to use too.