"These systems require no dirt. It is 3 to 9 times more productive and requires one third or less of the man hours than a traditional dirt farm. It uses less than 80% of water and can be set up in very arid climates...."
The only people who will benefit from this are the Idi Amins and the real estate agents in Marbella or Geneva who will make a killing selling villas to African generals and their concubines.