A common theme in previous posts, one I agree with.   Long range one cannot help but see agriculture being subsidized even more, and I don't trust politicians of either party to suddenly see the light as there's only one true consistency - they all love pork. 

Hence, I don't know that I  see a bubble, as to me a bubble is an unstable situation that could, or will, burst.  I see ag subsidies continuing, unfortunately.

norbect mentioned what may be the only real alternative, restated in my words:  centrally produced power (electricity) in well controlled and environmentally safe areas and technologies, with the power (electricity) stored and used in more efficient and envoronmentally manners.  The latter is where I fall short, though, as I still see major issues with millions of large battery packs in cars, as well as "minor" issues with wrecks, personnel safety, etc (I say minor only because I think these issues can and are being addressed).

//mjs