Depolymerization works. The question is economic. If we have to find 10 million barrels of oil per day sometime in the next decade, can we do it? Peak easy says no, not by a long shot.
Agreed. But the best comment I heard on the subject is that there really is no one "silver bullet" technology to eliminate our dependence on foreign oil. But the sum of multiple alternate energy sources can (eventually) do it -- this would be one step toward that goal.
There are over 100 million metric tons of biomass waste produced in the United States annually. How many barrels could you make out of that?
Ok, think about this in terms of economics. Let's leave behind the cost of savings by the production of oil. Let's look at the cost of savings in the loss of waste tonnage that must be processed and stored. By converting a net loss (turkey waste products) into a net gain (usable fuel oil and solid fertalizer), we are doing more than just adding to the gain side, we are also subtracting from the loss side.
Even if this doesn't result in the Saudi's losing their shirts due to independancy in terms of oil, this is a huge gain in terms of solid waste treatment and storage.