The steep ride up the and down the energy curve is the most abnormal thing that has ever happened in human history. Most of human history is a no-growth situation. Our culture is built on growth and that phase of human history is almost over and we are not prepared for it. Our biggest problem is not the end of our resources. That will be gradual. Our biggest problem is a cultural problem. We don't know how to cope with it.
M. King Hubbert
