A Carrier Social Space will be a cosmetic place where guardians can hang out. It is a big ship like the Fallen Ketch. It will hold a guardian quarters, a mess Hall, a hangar room, medal and achievements room (bosses killed Exotics you have been awarded), a secret room for the different types of Carriers. Also placed around the different rooms there are NPC's which are similar to the ones you have in the tower. You can use silver to by couches, extra rooms and even what the NPC's are wearing. This is just an idea that has been created by many different people. So don't give me all the credit but this is a great idea for the community and for bungie.