> To leave your underwater habitat, you have to scuba dive or get into a submarine. You never get an unmediated experience of the outside world. Your skin touches the inside of your suit. You smell only the air from your breathing apparatus and your own breath. Forever.
This sounds close to the neck beard trope, of people living in their parents basement and never seeing sunlight. Could we inadvertently be adapting to a Martian or Lunar environment?
No. My adaptations are definitely intentional. All that sandbox-world gaming is training, for when I will be stuck inside a ~70 m^3 volume with several other people, simultaneously mining for vital resources and additional living volume using a remotely-operated robot that is not quite ready for fully autonomous operation yet.
It will totally be worth lifting 250kg of human adipose tissue into LEO, I swear. If the food supply fails, you'll need someone that can survive without it until the next available harvest. Not that I weigh that much now, but with some intensively sedentary neckbearding, I can probably get that high by the time we're ready to launch.
This sounds close to the neck beard trope, of people living in their parents basement and never seeing sunlight. Could we inadvertently be adapting to a Martian or Lunar environment?