earthbound wrote:
As I say, I hate to seem pessimistic, but people have been trying down this path for a hell of a long time now, in the US especially, so when people keep trying over and over again the same types of thing, who are they kidding?
It's going to require some major shifts in most people's thinking I reckon.
Hmmm, major rant...

Off soap box now...
Not a major rant and spot on. It was Einstein that said words to the effect that "to do the same thing repeatedly and expect a different result is insanity", and this is what commercial agriculture has been doing for 6 decades. Commercial AP is following the same path which is foolish.
Basically the economic system within which agriculture (and AP, aquaculture, hydroponics are all part of agriculture) operates is fundamentally flawed. It is a rigid mathematical construct applied to a fluid biological system. There is a big crash coming as the artificial construct of economics meets biological reality. Agriculture is where this clash first takes place within the current paradigm. Which brings us back to the major shifts required in people's thinking.
If one fact puts the failure of industrial agriculture into perceptive it is this: in 1940 1 calorie of oil produced and delivered 2.3 calories of food, today it takes nearly ten calories of oil to produce and deliver 1 calorie of food. It doesn't take an Einstein to see this system is doomed to failure. Any system that runs on such an energy deficit is stuffed, and we did it in a generation.
AP is one of the solutions to the problem BUT it must operate within the financial constraints of a bankrupt system. Anyone contemplating a commercial venture would be well advised to plan for a systemic collapse of the current food distribution system within a decade or so. Large scale production systems that ship food thousands of kilometres are dinosaurs the world can no longer afford - economically, socially or environmentally. Just watch the price of oil over the next few years and all will be revealed.
The future of food systems will be small scale decentralised autonomous production systems within 100 km or less from the eaters. If you want an analogy of a resilient system think of how the internet operates - couldn't kill it if you wanted to. Funny that the internet was developed by the most top down command and control hierarchy, and it replicates a biological system. This is how and where I see AP fitting in, not with mega scale commercial systems that cover many hectares, but with smaller responsive and diverse units of production close to the consumers. So in margins between the current domestic scale and huge commercial.
Yeah, yeah, I studied economics too and know all about economies of scale, comparative advantage etcetera - but go back to the idea of the internet, where are the economies of scale in that system?? You can be the biggest one year and then not exist 3 years later, and the small company that tomorrow develops the 'killer ap' becomes the all conquering social media You-twit-face putting all others to the wall.
And for those that doubt the systemic failure I can only offer the words of George Santayana "Those who do not study history are destined to repeat it" - or words to that effect - end rant.