[Baron Munchausen]

I think my reply to your other post covers this pretty well if you think about the implications of "work time" as a resource. A colony module would be one of the most complex things you could build. It would probably have the highest cost of any single component, even stellar manipulation components! And with "work time" as a resource you'd value your population much more highly than you tend to now. You'd have to be much more careful about placing new colonies even if you have the colony modules. Getting a few hundred million colonists killed on an undefended world could be a disater.