1. A system for generating bit reliabilities, the system comprising: a detector that generates a detected sequence; and a post processor that generates values indicating probabilities of a plurality of error events in the detected sequence, that partitions the values into first and second subsets, that selects a first most likely value from the first subset of the values, that selects a second most likely value from the second subset of the values, and that generates a bit reliability based on the first and the second most likely values.