I do not agree.
The way to self-sufficiency includes electricity.
In the future much of our food will need to be grown indoors.
In a greenhouse or with grow lights.
And the way to advance is to increase the amount of calories one can grow with the minimum amount of human inputs. Or, technology. Running water, irrigation and automatic sprinklers to name the basics.
As you say, solar panels are not energy worth it unless you live below the 30° mark. In America that's the south-west deserts.
Fortunately there are much better ways to use solar and convert it to electricity.
They just aren't as simple as hooking up a photovoltaic solar panel.
They require engineering and mechanical know how.
Yes, but don't you still require INDUSTRIAL PRODUCTS?
Unless you can make it yourself, without a factory, your "sustainability" window is only about 10 years.
Yes, i can build it myself.
From raw sheet metals.
If i have to make the sheet metals, it will take longer.
My plans should last about 100 years.
The biggest pain in the butt is bearings, but i can always go back to babbitt.
Nice. I wish I could be as confident.
I'll be lucky to last a few months in Jericho.
I hope you have enough genetic diversity to last more than 2 generations.