I'm gonna be the annoying guy who points out the obvious thats being repeated again and again for the last 50 years...
For transport, trains! Trains of different sizes, shapes and designs, solve most of the transport issues. The fact that western countries are behind on this doesnt mean it's too late to start.
For heat, better insulation and heat pumps do wonders!
For feedstock maybe feeding animals is simply bot the way we should move forward.
And I say all this as a person who drives a gas car 70 miles every day, lives in an old house with bad insulation and eat meat several times a week
Not only that, but there are quite a few scientifically sound concepts that escape the tyranny of the rocket equation. Pre-seeded trajectories, particle beam propulsion, sails etc. Breaking the wall of light might not be possible but beating the current rockets by orders of magnitudes is enough for interstellar travel. And that is only an engineering problem.
My personal favorite these days is innumerable 'smart' pellets, bacteria sized, steering themselves using albedo-changing surfaces toward the ship's magnetic sail to transfer their momentum, allowing for constant acceleration.
For some people, the sandbox mode is where the fun is. They ditch entirely the survival part of the game and simply like to build things in creative mode. Some people build houses and voxel art, others create complex mechanisms up to functionnal logic gates and computers, and others just like to explore the fractal world.
For transport, trains! Trains of different sizes, shapes and designs, solve most of the transport issues. The fact that western countries are behind on this doesnt mean it's too late to start.
For heat, better insulation and heat pumps do wonders!
For feedstock maybe feeding animals is simply bot the way we should move forward.
And I say all this as a person who drives a gas car 70 miles every day, lives in an old house with bad insulation and eat meat several times a week