Dave,

A very interesting post, as usual.  Some thoughts.

I don't see how substituting flow for reserves changes anything at this time.  It isn't certain at this time what flow will do in the future.  Many are predicting over 100 mbpd in 15 years.  In my opinion if the flow tops out, there will be a quick revision on the reserves to show they aren't as large as predicted.  Either measure will show we are at peak, but neither are accepted now by non peakers.

A second point is that even if people (oil insiders) know oil is a scarce resource there doesn't seem to be any incentive to stop producing if price isn't rising very quickly.  They want their money NOW.  Even if oil peaks the money can be used in some other technology at better return.  

I liken oil extraction to logging of old growth forests, trees larger than 36" in diameter.  This industry was clearly finite in the U.S. and was near peak in the 1980's.  There were not going to be anymore trees to feed into the mills in a few years at the rate they were being cut.  Theoretically, a very low harvest rate would have sustained some of the industry indefinately if replacement of trees equalled harvest.  But this is on a scale of hundreds of years and many would be out of business.  

So clearly the price of U.S. virgin forest wood should have gone through the roof, but it didn't.  Essentially all the available trees have now been cut. A few remain in protected areas but it is not enough to sustain an industry.  The mills that could only handle big trees went out of business or had to retool for small plantation trees or invested in Brazillian wood.  People did not behave rationally, with respect to price, when faced with a finite resource.  Even when the trees could be surveyed from the air there was no economic incentive to save them.  Many people who work with wood say that the old growth wood can't be replaced with tropical wood or plantation wood for many uses.  That wood was incredibly valuable for large beams and structures but much was turned into common 2x4's.

I forsee the same approach in oil.  There won't really be a substitute for high grade oil.  Most will recognize its uniqueness only after it is gone.  Like the Passenger Pigeon they won't value it while it is still here.

Forest equilibrium

This is done in Austria since empress Maria Theresa, the mother of Marie Antoinette, who was beheaded in the french revolution.
If you travel to Italy, you still can see the old border between the Austro-Hungarian Empire (sustainable forestry) and the Republic of Venice (Peak wood due to unsustainable demand levels ).

To play Devil's Advocate, though, we now make large beams by laminating layers of wood and glue into glulams and microlams that are stronger than old growth fir or pine, though not as aesthetic.  

What is the likelihood of making "better" gasoline from other sources?

Pretty much zero.

You can define the physical strength of beams in physical terms and then discover that there is no shortage of tensile strength or stiffness. With oil, one of the key values is energy density. Nothing short of nuclear fuel has the energy density of oil.

Furthermore, energy source, unlike wood beams, have the characteristic that they lose value in proportion to the amount they are modified.

You can take a pile of wood laths, add glue and energy and technique and make a beam which has more value than the starting ingredients. With energy sources, the more work you do to modify them the less net energy you wind up with. Hence, ethanol from corn, oil shales and tar sands are not going to be replacements for oil.

This is the miracle of oil. It has a very high energy density, you get it by sticking a pipe in the ground, you carry it in a bucket, you use it by lighting a match to it. Any other energy source we know of suffers by comparison in at least one of those characteristics.

This is the crunch the world is in. We've been enjoying the benefits of this fantastic source of energy for over a hundred years, treating it as if it will last forever, and now we are finally facing up to the fact that it won't.

Both zinc and aluminum have energy densities greater than petroleum products. Zinc in particular can be oxydised in a fuel cell and the byproducts can be recovered and recycled into fresh zinc and electrolyte. The byproducts of gasoline oxydation are CO2 and steam which are lost to the atmosphere thereby creating climate change.