Frames would not have survived by themselves. External services were established to provide the advance of Exodus. These were two types of MMP (Multi Modular Platform): Brigadiers (terraforming and creation of zeroplast) and Buildmasters (construction), and also Monks (energy procurement, united energy system, protecting cupola) and Legion (mobile military operations on the scum-worlds surface). All Exodists underwent a thorough genetic test at birth and at that time their fate was determined: about 10% were ascribed to one of the external services as operators and underwent special psychological training to reduce the risk of Reaction, other 90% spent all their life on board the Frame as biological material for reproduction, spending most of the time on rather primitive entertainment (Organism reasonably limited the intellectual development of its "cells"), long group meditations dreaming of the New Land and short sleep.
Occasionally born children with unique intellect abilities were raised separately and made up the ruling clique hidden from the main popularity of the Frames. They were engaged in strategic planning of the Exodus development and were aware of the real state of things unlike other migrants. Humans with uncontrollable fantasy, which threatened everyone through Scum's Reaction, were exposed and immediately destroyed. But it was impossible to utterly suppress the human nature so the Legion had a hard job to protect the borders from Filth.
According to the new chronology system, it was a year later after the Start of Exodus expedition that all the ten Frames entered the desired Corridors after leaving scum-worlds and going deeper into Sponge. After two scary generations of preparation no one living in Frames except for Spirits has ever been on the Earth and had a very vague idea what this forbidden notion could mean. None of them could go back, but their children had a chance to find and live in a new world. Exodus started its large-scale relocation to the depths of Scum, forcing its way through the Filth...