rayyy

Never sell proven chemistry or physics short. Water transforming to a vapor is awesome. Maybe we could harness the energy of water transforming to a solid too.

Don’t sell steam power short or water for drinking.

People need to understand that gardening is a huge amount of labor and time spent - it’s not economical compared to working a job and buying what you need.

It depends on how you do it. Read Masanobu Fukuoka’s, “One-Straw Revolution”. I don’t plow, til or do much weeding. I don’t use machinery to garden, just a round point shovel, hoe and a five tine fork to spread mulch. I save seeds that grow well, produce and are tasty. I don’t spend a lot of time working in my garden and I don’t have hardly any weeds. It’s all about the technique you use. Conventional gardening can be very expensive and labor intensive.

I would go with parsnips as an alternate survival crop to sunchokes. I grow both but only use parsnip. They are aggressive re-seeders and produce huge roots.
You can find tons of parsnips growing wild along road in my area. Which makes foraging a very attractive option.

Potatoes can be grown sort of as a perennial. I leave potatoes, carrots and parsnips in the ground to be dug when I need them. They stay much fresher that way. You have to mark the rows and mulch the potatoes so they don’t freeze and become mushy, especially if there isn’t snow cover. I have been doing this for several years. These are also high calorie foods.