Early space habitats, and hastily constructed ones, will involve habitat tubes built into dug out mines on moons and asteroids, which provide natural structures and radiation shielding. These tube habitats have no artificial gravity, cramped corridors, limited living space in general. Residents require extensive medical attention, constant exercise, and mental therapy to stay healthy. Depending on the size of the colony, the tube habitats can be independent with careful resource management, local hydroponics, and in-situ resource utilization. However, such colonies are often too small, the bodies they're built into without the sufficient element diversity, to be sufficiently deemed independent.
Life in tube habitats is extremely militaristic and spartan, by necessity and tradition; the first colonists of tube habitats would've found their homes in lava tubes on Luna, trained by Earth government militaries. Most of these colonists would've had experience in Earth navies and air forces. Children from a young age would be taught to preserve every drop of water and crumb of protein, well educated in maintaining life support systems. Privacy is essentially non-existent, both by necessity for survival and due to close proximity to one another everyday. Thus, within a few generations, a tube colony becomes highly conformist and utilitarian, prone to dictatorships. Xenophobia, especially towards comparatively wasteful planet-borne, is common. Tube colonists in general face higher rates of anxiety and anger issues. In extreme cases of ableism, infanticide is deemed a necessary evil to maximize productivity and minimize resource waste. Social isolation of tube colonies can also lead to rise of various fanatical cults that consume entire communities, growing more often over the centuries as the major governments lose track of small colonies. Life in tube habitats is harsh, but those born into it can become some of the most technically competent, disciplined and tough members of society humanity has seen, provided they have healthy outlooks on life.
Life in tube habitats is extremely militaristic and spartan, by necessity and tradition; the first colonists of tube habitats would've found their homes in lava tubes on Luna, trained by Earth government militaries. Most of these colonists would've had experience in Earth navies and air forces. Children from a young age would be taught to preserve every drop of water and crumb of protein, well educated in maintaining life support systems. Privacy is essentially non-existent, both by necessity for survival and due to close proximity to one another everyday. Thus, within a few generations, a tube colony becomes highly conformist and utilitarian, prone to dictatorships. Xenophobia, especially towards comparatively wasteful planet-borne, is common. Tube colonists in general face higher rates of anxiety and anger issues. In extreme cases of ableism, infanticide is deemed a necessary evil to maximize productivity and minimize resource waste. Social isolation of tube colonies can also lead to rise of various fanatical cults that consume entire communities, growing more often over the centuries as the major governments lose track of small colonies. Life in tube habitats is harsh, but those born into it can become some of the most technically competent, disciplined and tough members of society humanity has seen, provided they have healthy outlooks on life.


