Well its just another evolved form of hydroponics- instead of water they use water vapour. Anyway I think its a really good way to go too... infact a lot thirdworld countries are taking the initiative to use simplified hydroponics/aeroponics for their poor people as a means of food, it can be easily done by things available at home.

"Ali Baba and 40 thieves" are now "Ali Baba and 30 thieves" ; 10 were laid off.