Board Thread:Online Discussion/@comment-207.166.242.52-20131029182300/@comment-1600847-20131029203512

71.60.158.21 wrote: Alduin. It could be, but there have been many Dragonborns throughout history long before Alduin re-appeared in Nirn. Plus, he's a necessary part in the cycle of creation and destruction, created by Akatosh himself. Why would he hinder himself?

Maybe Akatosh got bored and decided to add some variety in the world.