“...which has an admirable goal of producing a renewable transportation fuel without impacting the worlds food supply”
All of this magic grass and corn cobbs is grown in the same area as our food supply. Even if it worked, the need for large amounts of water to ‘refine’ corn cobbs into a mash competes with our food supply’s need for water.
Not to mention the acreage. What if the government decides they need your farm for switch grass production? Eminent domain? For the common good? And you can count Monsanto to genetically modify the grass so that they can patent it and collect royalties.