Some of the generic elements we looked at in the last chapter were thematic, some stylistic, and some purely formal. An exhaustive catalogue would be impractical – not to mention tedious. But, taken together, generic elements like these constitute the traditional side of hexameter poetry. Typical features are the ones that define the tradition as a tradition: if poets repeat a feature, then it propagates successfully, survives, and becomes a traditional element of hexameter poetry. Or, to put it more aphoristically: repetition is tradition.