Today, I explain The Tau Empire from Warhammer 40k to my Wife. This does  not go as planned. She's loyal to the Emperor... or Gork and Mork...  Well, she just doesn't like big robots.  
I attempt to explain where the ethereals came from, how the Tau have  expanded in their spheres of expansion, a little bit about the  characters of Shadowsun, Farsight, and Aun'va, as well about the big  robots that tau players love.

Explaining The History Of Armageddon To My Wife | WH40k

Some stories tell you something about the world you live in while others invite you into an entirely new one, telling you more about the world that may not have any connection to the main story. 

Join us while a geeky husband tries to explain lore to his nerdy wife. We will explore the lore of modern storytelling and how authors and writers showcase the world’s they’ve built. We will cover many areas in pop culture including movies, shows, video games, books and more!