Anon12/25/25, 14:42No.2855229
The stuff growing on the land absorbs energy from the sun in order to grow. Half an acre is roughly what you need to match your caloric intake, give or take things like dependent crops and livestock and any family who's helping you work the land.
I'm not sure its totally self-sufficient though. Unless you're fortunate enough to have a stream or a river on your property, you'll rely on water infrastructure at the very least. Add in stuff like electricity, fuel, tools, farming supplies, etc and your "self-sufficiency" quickly becomes an aesthetic rather than a reality. Also your land, especially such a small plot, can fail, and at that point you'll need to rely on stuff other people have produced in order to survive at all.