Those who are nostalgic for life in the farm economy of yore are going to run smack into the dismal science of economics. Widespread farm-to-table would cause huge increases in the price of food, and far less variety, for anyone who is not now growing his own food. Costs rise exponentially as demands are placed on limited resources that have to be withdrawn from other uses.
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Fear not. As the prices rise, mass production will commence straight away.
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We had better fear because farm-to-table, by definition, blocks the mass production that would normally develop to check the rise in prices. Farm-to-table is easier for millenials to talk about than to do. One problem alone is that a whole generation would have to be moved out of the cities and trained to do, and conditioned to like, farm work. The communists tried that in Cambodia after the war in Vietnam ended, and the result was so disastrous that even the Vietnamese communists felt induced to invade Cambodia to put an end to the suffering.
Sure, except that farm-to-table prices would be undercut by the nonbelievers. And soon the believers' would stop believing because: $$$$.
I am old, and a lifelong farmer. All my life I've heard my fellow travelers lament that the low prices couldn't last and THEN we'd all be financially ruined and people would be starving because the prices would soar to the moon. As if we'd not notice this and rev up to take advantage of the skyrocketing prices so fast heads would spin.