^ Well it would still have to spread out a bit, but that makes perfect sense. Starvation doesn't seem to be a huge problem on Gideon, so voluntary overcrowding just to prevent starvation is another possibility.
OTOH, the Soylent Green line is pretty apt, considering how THEY decided to solve their population problem
. Suffice to say, a planet whose population is so massively saturated would have HUGE downward population pressure even without the introduction of a plague. I sort of thing that without the introduction of Kirkitis, nature would eventually run its course and the Gideonites would start murdering each other like a NORMAL dystopian society.