Keep in mind:<p>1. many militaries do studies like this. contingency planning. they consider it part of their overall mission of defending their country and interests<p>2. as the supply of cheaper oil shrinks relative to demand, price increases and then more expensive-to-deliver oil becomes marketable (like from shale/sands, or synthetics). and alternate energies become more attractive and economically feasible (solar, wind, geothermal, tidal, nuclear, etc.) and people increasingly try to use less oil. all of this adds up.<p>3. nobody can predict the future with certainty, and the accuracy and reliability tends to go down the farther into the future one tries to evaluate