Make Better Decisions

Turn complex decisions into a series of simple A vs B comparisons. Get a ranked list at the end.

One item per line

Why it works

Ranking a long list all at once quickly runs up against the limits of working memory. Research by Miller (1956) found that people can reliably hold only around seven items in mind at a time, which is part of why direct ranking gets harder as a list grows. Two options at a time is a much easier question to answer.

The results are calculated using the Bradley-Terry model, the same method used in chess ratings and sports tournaments.

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