TED-Ed: Which voting system is the best?

The video explores various voting systems used to decide the location of a spaceport on Mars, highlighting the limitations and fairness issues of each method. It begins with plurality voting, which favors the majority but may not be fair to all. Instant runoff voting considers full preferences but can still yield unsatisfactory results. Multiple rounds can be manipulated through tactical voting. The Condorcet method compares head-to-head matchups but can fail with certain preferences. The video concludes that no perfect voting system exists, as fairness assumptions often conflict.

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