Lets say we take a system in the US using zero ethanol as a baseline.
The first million barrels a day comes from waste corn, corn unfit for consumption, etc.
But the next million comes from usable corn, of which the price of corn tells me is not in the best supply compared to ten years ago.
So when you look at the growth patterns for example of the past decade, you cannot extrapolate the ethanol growth patterns (even in places like Brazil) because the cost of the foodstuffs is making it quite prohibitive and you long ago left the "free waste" levels behind.
Refinery gain is a neat trick, but you can't increase it much (so that's static)
This is the problem with the All liquids. We used all the "change in the couch cushions" in the past ten years. Now you need new, fresh real No-BS crude.
You can't sub anymore benzene or butane or ethane etc in there.
If you want to swtich to CNG vehicles, then fine. But thats a different kettle of fish.
