*Humanity tries to flee from Earth, starting a mass exodus towards the edge of our solar system, what would now become The Reef. Correct me if im wrong but isnt the Reef located in the Asteroid belt? I thought that was said somewhere in game but i cant recall either way good read. Also you should note somewhere that there are several Awoken that returned to earth to help with the creation of the city centuries ago which is why there are earthborn Awoken who dont know about the Reef and the Queen (Like your character if you choose to be an awoken).