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The Earth blew up, most of the porn went with it. We spread to other planets, there was a big war, 96% of the population was killed off.. not a lot of time or room for porn.
Yeah, they created us, the Spartans, for the war. There were more of us, a few different groups. The fifty were actually the Freelancers. All Freelancers are Spartans, but not all Spartans are Freelancers.