Your arguments are good, but it´s not the sustainable living i mean!!
I was thinking about take care of nature, saving resources, climate change and so on...
Not to live that you kids have a good life too, to life that the next generations in general have it
The key, I believe, is try to make as little change as possible to the planet, whatever that change should be. So a closed ecosystem is the best option and it fits with our aspirations to leave on other planets as well.
We could live underground and not cut down forests for no reason, let along farming and wood. We should try to develop underground farming to a higher level. Use heat from the core of the planet or from solar panels in the desert to generate electricity that we use for artificial light in our underground farms.
Unlike some people, I actually believe that less organic and natural way of life is the best option for the planet. We should use GMOs to make underground farming more efficient and live our life with our inventions and interfere with nature as little as possible and let it run it's natural course without us.
I too opened this thread thinking it was about sustainable living on the earth side of things. Some interesting points brought up here about underground farming. I havent heard much about it but like the idea. I also like the idea of focusing farming in areas that dont destroy highly biodiverse ecosystems.
Also I get the GMO point about being more efficient than organic, but there are other issues about GMOs and the chemicals specifically