Chapter 17a – Peak Oil: Energy is the lifeblood of any economy and a steady supply of energy is necessary to maintain the status quo, while an ever-increasing supply is needed to grow an economy. In this chapter, Dr. Chris Martenson explains that Peak Oil is not a theory, rather it is a description of how oil production increases over time, reaches a peak, then declines. Evidence points to a global production peak in the near future, which is troubling since the U.S. imports two-thirds of its oil and relies on it to much of its transportation and food production needs.

Chapter 17b – Energy Budgeting: Petroleum has supplied the surplus energy that has allowed for social complexity, industrialization, and the modern conveniences that we enjoy. In this chapter, Dr. Chris Martenson explains that in the future our supply of surplus energy will decline due to the fact that increasing amounts of energy will be required to produce new energy. When poor net energy (ERoEI) returns are paired with peak oil production, it points to a return to a less complex society.