Nemesis/Talk

I think it is a very questionable claim that divine retribution is the unifying theme in the Odyssey, or even a unifying one. The Greek gods hated immorality, to be sure, but are just as happy punishing people who have made good, as when Zeus protector of suppliants with Poseidon punished the Phaeacians for being good hosts. Agamemnon's murder is repeated again and again, but the events that put it in a moral light - the murder of Iphigenia, and all that - are not mentioned. All in all, I would say the poem is a creation of a time before Nemesis played an important role.