First I have to commend econ to debate on a peak oil forum, all different kind of views are needed and appreciated. That he is way to optimistic is refreshing, when I was young and less cynical I had the same kind of optimism. And sometimes I would like to be that optimistic it might have given me a better return but also large hits when that optimism turns to despair and if your still an optimist you loose your shirt.
When it comes to complaining that I got a tax credit for a volt. I just follow the tax code, like oil drillers get tax write-offs, corporations get write-offs, you get deductions and credits. I would like all those credit go away to make it simpler for all, but I would be a dumb son of a gun if I like most people don't use the tax code to my advantage, that's capitalism as well as any, let me know when all the other credits in the tax code for all different things like bio-fuel production from corn or oil exploration and free supply route protection by the US military for oil are gone, all paid for by my taxes.
Trying to explain the current issue with our current system of cheap credit is fairly simple. We have very low interest rates right now so its pays a lot to borrow to invest in all different kind of things, and oil in Texas and North Dakota is very profitable with these OIL prices so lots and lots of capital is going that way. I believe as any other time the FED has lowered rates that its to tempting to keep your loans in short duration due to the savings, but once we get higher rates either due to FEDs controlled tightening or forced tightening due to inflation, the rates will start to rise and all the loans would have to be re-financed with higher cost and these are both direct loans and loans taken by other to investors in oil shale related adventures, at the same time OIL prices might fall, so the companies using this scheme will be forced to slow capital expenditure and with a situation that we have in Bakken with high decline rates the result will be slowing growth and reserves for these companies which will in turn affect stock prices which will then slow capital expenditures and new fresh investment capital.
My theory is based on 5 things happening at the same time..
1. Short term borrowing that with rising rates will slow capital expenditures
2. High Decline rate forcing increasing high capital expenditures
3. Stock prices and investment willingness slows down which will slow capital expenditures
4. Much slower rise of oil prices or falling prices as the world just cant pay for the oil, so demand will simply slow.
5. Stronger dollar, rising cost for the oil production in the US compared to others sources.
If you look at bubble in the past, it generally has the same characteristics
1. Need a resource/technology that can be hyped and needs allot of capital (Investment) (Rail, Farmland, Houses, Internet Stocks....)
2. The resource/technology requires a lot of investment and rising prices to keep expanding.
3. Lots of short term lending based on the fact that you have lots of willing investments into the area.
4. Overhyped by everybody and very few voices of reason.
5. The fact that the capital needs to always grow is less understood by most and the main line is that there is no limits.
How far can this bubble go, that's the question. I think it depends on two things, inflation and the amount the world economy can pay for oil.
And again this has nothing to do with production of oil or how much oil there is, this is simple economic cycles.
The economy find one thing to use as the positive, naturally wall street runs with it all the way to the bank, the country embraces this new positive development and uses this to push an optimistic view which in turn pulls the whole economy up, nothing wrong with that. But once the positive development turns negative or stagnate it brings down the whole thing and we get a recession until we find a new thing to be optimistic about.

My current hypothesis is that Shale OIL is this optimistic catalyst and will bring us up and then down.