-Crop rotation
-Dried preserves
-Irrigation
-Storage
-Canning
-Vacuum Sealing
-Refrigeration
-Fertilizer delivery systems
-Mechanical harvesting
-Food Preservatives
-Irradiation
-Transportation technology and infrastructure to move food from growing regions to regions in winter dormancy
-etc.
Human population collapse. It’s been tried before. It’s called genocide. Done on a local level. People get in the way. Start with Jooz. Then there’s the city slickers(Pol Pot). Tutsies/Armenians.
There’s religion, economics, politics. Whatever comes up.
The world’s population will get older. That’s when the next ‘correction’ comes into play. Too many old folks out there. Think death panels and assisted. suicide.