Yeah, the two guys developed it themselves, so good for them. Neither of them were material scientist is the cool part. I do like the openness and community of the earthships better as well. I was just blown away at some of the designs these people were doing... and I love geodesic domes!
Discussion
Both the domes and earthships are solving the same problem while accessing most different markets. This is a great example of how there are many ways to do a thing but no best way, only different ways with tradeoffs.