Because it is cheaper and easier to build stuff down here. Space habitats require thinking in terms of systems, dealing with inputs and outputs. Humans haven't

Because it is cheaper and easier to build stuff down here. Space habitats require thinking in terms of systems, dealing with inputs and outputs. Humans haven't mastered systems thinking yet. https://en.wikipedia.org/wiki/Tragedy_of_the_commons https://en.wikipedia.org/wiki/Tragedy_of_the_commons