That first link seems dodgy, in the sense of having something to sell. The yield increases are hard to believe also: one ton of peas per acre turning into nine

That first link seems dodgy, in the sense of having something to sell. The yield increases are hard to believe also: one ton of peas per acre turning into nine tons, hmm. And how much would it cost to hydroponic-ify an acre of land, how much to run it, and what about issues such as sterilisation etc also if you want to maximise yields then you probably head towards monoculture again, and I guess we both agree that's a bad thing. As far as I know the only thing worth growing at home with hydroponics this actually makes commercial sense is Mary Jane, and that uses a lot of electricity. And radiates a lot of heat that can easily be picked up by helicopter with a thermal camera.