I once came up with a scientific formula to numerially rank every CD in my collection. The idea was to assign a point value (on a scale of 1-10) to each song on each album and then divide by the number of songs on the album. This would give you a mean song-score for the whole album… basic stuff.

The added wrinkle came when I tried to account for longevity. I figured it would be easy to overpraise more recent songs while a song that stood the test of time would get no boost for having done so. So I weighted the scores by adding a tenth of a point for every year since each album’s original release.

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