There are network effect to infrastructure, both in space and at the poles. No-one wants to build habitats in either b/c there are large up-front costs to buil

There are network effect to infrastructure, both in space and at the poles. No-one wants to build habitats in either b/c there are large up-front costs to building initial infrastructure. once it's there, things may change. That said, Necessity is the mother of invention; and right now we have no reason to spend resources on developing these environs as there are plenty of more desirable habitats (e.g, nice climate w/ stunning views and wildlife), and the current trend is wanting to live near other humans in high-density cities. Let underground habitat tech develop a bit more (100% artificial lighting replicating daylight), and planetary populations, and hence competition increase, and there may be more enthusiasm for this stuff.