One thing I think is interesting is that many people value fairness, but people also have very different ideas of what is fair.
For example, I think quite a lot of people think first-come-first-served is fair, and jumping the queue is unfair. But that doesn't seem to be the notion of fairness employed here.
Another way to define fairness could be based on the song duration. Is it fair if two people get to play the same amount of songs, but one picks songs with an average duration of 3 minutes, while the other picks 15 minute long songs?
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