This is also what I focus on. Energy is fungible for a great deal else in the economy. Energy is fungible for transport. Energy is fungible for food. Given enou

This is also what I focus on. Energy is fungible for a great deal else in the economy. Energy is fungible for transport. Energy is fungible for food. Given enough energy, cheap enough, then energy is even fungible for salt-free water. There are other possibilities, such as the breakdown of certain international trade systems, or less productive legal regimes (expanded judicial review and expansive due process) but energy seems like the most likely, most direct cause of the slow down.