I'm enjoying this thread as a thought experiment.....
"what if the cost of food goes up 10x?"
Taking the '10X' literally and not as an exaggeration means most everything we buy more regularly becomes unaffordable ........
25# organic oatmeal 29 x 10=290
5# black beans $10 x10= 100
32 oz. ground coffee $15 x 10= $150
cabbage .50 per # x 10= $5 per #
5# organic brown rice $10 x 10= $100
local raw milk $6 a gallon x10=$60
local eggs $5 a dozen x 10=$50
I think the milk and eggs we buy might not increase ten fold though...depends on the price of their feed and winter hay.
For us, the 'backyard food pump' would be root crops of all kinds along with foraged (within walking distance) fruits and greens and fungi.
Sweet potatoes are our big hope...both greens and roots.
They easily store for more than a year without much effort and are easy to propogate from slips. I grow both purple and orange for more nutrition.
..plus turnips and beets for roots and greens.
We love parsnips and have a few of them volunteering but I want to try salsify as a root where the greens are also edible and more likely to reseed abundantly.
I'm weeding sunchokes. They will never be gone and we enjoy them as a ferment but they will never be a reliable main food crop for us and the space is more valuable for other things.
We grow beans of all sorts, both green and dry
have a large variety of wild greens, mushrooms, persimmons within walking distance.
I think an abundance of saved seed will make all of the difference....that and hand tools.
This year, again, I packaged our extra seed and gave our library's free seed table a big boost.
I'm seeing more worked up dirt for gardens in yards here around town on our walks....lots of empty lots that could be used to grow food.
lots of room for small livestock within the town limits.
people here do help each other in spite of lifestyle, political and religious differences although in extreme circumstances as the price of food and fuel increases, I wonder?