ThenDoctor said:
I suppose but they also might remain like Cadia's graveyards, pastures until the name on the tombstone cant be read anymore then the body is exummed to make more room
True, that could happen, but why? After all, this is a whole entire PLANET we're talking about. It would take a LOT of bodies to fill every nook and cranny of it and every available acreage. Cadia has that ritual because it's not a cemetery world, it has to support an active life and culture. Cemetery worlds don't. All they have to do is house the dead and the dead take up a hell of a lot less space and resources then the living. If a planet could have billions living on it, it can easily have trillions and zillions buried on it. Just think if every bit of land on earth were turned over to housing the dead, if every city were a mausoleum complex, if every field a grave yard, how many dead could Terra hold and would one little city dedicated to one family be all that obtrusive in the grander scheme? After all, is Atkins, Akansas, USA really that obtrusive to you and have you ever even noticed it's existence in the first place?