Board Thread:Lore Discussion/@comment-4705438-20140201121316/@comment-4705438-20140206214242

Tiber is believed to be both a Dragonborn and a Shezzarine, making his soul be a combination of Shor's and Akatosh's soul pieces. But Aedra didn't take a part in his actual ascension to the godhood.

Existence of Talos was a result of Tiber's utter selfishness and knowledge of his servants.

Yes, Akatosh is responsible for a linear timeline on Mundus, but it's not that relevant for a dream to have a linear time. Many Gods can, in fact, move through the dimension of time and create or remove objects from it.