Here is a REALISTIC and EASY way to INCREASE our own food supply:
STOP MOWING.
STOP WEEDING.
STOP KILLING WEEDS.
STOP PAVING THE LAND
LET THE LAND GROW FREELY.
The VAST MAJORITY of "weeds" ARE FOOD.
MOST of them even have Medicinal properties.
Return to the Land to Live.
Grow Gardens.
Replace parking lots with Free Orchards.
Earth provides food FREELY.
I already live 99% from foraging and scavenging and gardening, and I make my own medicines from Nature.
It IS doable, and it IS abundant when people stop deliberately killing it.
Earth IS Eden.