Madruga Works,
I love Planetbase for the future it is trying to represent. The simplest and most important aspect of colonization/city building that you have missed is our ability to expand on our own terms through the "FORCED" removal of our surrounding environment, i.e., earthmoving. We would not build around the mountains, but simply remove them to geometrically expand outward. We have been doing that for thousands of years. What would stop us in the future??? Create a robot or a machine for workers to use???
Thank you for your time