You also predicating your opinion on replacing current oil use numbers. US can cut down significantly on amount of oil used and would be no problem in 10 yrs of being 100% independent of all foreign imports. That falls within the window of commercialization across several algae techniques. I don't expect and no else expects algae to immediately replace Big Oil but it will happen. I can see co-ops starting locally with 100 acre fields that can produce thousands of gallons a day 24/7 of algae biofuel. The genetic innovations of algae will bring a strain of where you use a big blender and out comes combustible biofuel with no refining.