The more one knows it always helps and thanks for your response, Guido. Still, from a biological and physiological standpoint, their have been IIRC, studies done or simulated conditioning-psychological tests in the past that revealed that at least some humans would have a very difficult time coping and adapting to living permanently in a deep, underground, interconnected silo bunker-type environment for extremely long periods of time and considering that within the context of Silo's dystopian setting, large cluster colonies of humans have lived underground for centuries, I think it would be extremely problematic and unlikely to expect most human beings to successfully adapt and assimilate in a real-life futuristic scenario unless certain psychological pre-conditioning, subtle, long-term brainwashing techniques seen in dystopian, authoritian societies like Huxley's Brave New World were used as counter-effective agents.