What are realistic yields for aquaponic fish or laying chickens? Animals have to get their protein indirectly from nitrogen fixing organisms. Is protein-rich chicken-feed significantly cheaper than store-bought beans?
I guess the formula for big-impact-gardening is something like:
(cost/unit) X (units/year) = annual cost of item
What ever item has the highest number, grow that.
Maybe I'm making this more complicated than it needs to be. But I would ideally like to be totally self sufficient, and I'm reading conflicting things about how plausible that really is.
Perennials are time efficient, annuals are space efficient. But I want both!
From first principles; all of our food comes from a combination of sunlight, air, water, and dirt. Plants, bacteria, and fungi turn those into molecules our body needs. To get those molecules, we either have to grow them, forage/hunt them, or buy them with money we made doing something unrelated. Those last two seem less efficient to me than the first.