Did you know that you can use your 401K to start an organic food production business? It's actually pretty easy! The ULTIMATE solution. PermaCube Revolution is the most efficient and diversified food and energy system in the world that we're aware of; creating vital food, and even clean water and energy.
Personally I cringe when I see current 'buzz words' being used in the naming of a product. Doesn't really mean anything about the product itself, but I think that's a common tactic of 'big business' when it wants to cash in without actually supporting the underlying philosophies. I think that's how organic lost so much of its meaning.
On the whole issue of using your 401k to start a business, it is possible but involves setting up a specific corporate structure, setting up a retirement plan within the corporation that allows 100% investment in company stock, and then rolling over your old 401k. In other words, there are a lot of steps and you'll probably need professional help to do it right which may cost a lot relative to the $10k purchase price the permacube is advertising.
I watched a few of his videos. It's mostly a guy talking. The Perma cube is represented in computer graphics but not as an actual artifact. This leads me to believe that it's simply a concept in his head. I did a Google search looking for Perma Cube reviews and came up with nothing.
There's an old guy from Australia who does videos concerning his aquaponics set up. The video show real plants in real green houses with real fish in real tanks. Then he eats a real fish with some real vegetables. Somewhat more compelling.