Talk:Solar Rail (Dark Sectors)/@comment-180.191.109.9-20150403113450/@comment-5866730-20170217004516

This would explain how the Grineer and Corpus have such large masses to combat all of the Tenno in the Origin System.

This means that it's not the rate of reproduction in the Origin System for them, but the sheer amount of facilities they have in other solar systems.