Dr. Meier, I have one last question, maybe the most difficult question of all. When you were talking about how it's harder to measure energy savings because of the very factors at stake, it got me wondering what success looks like in this field. Is success attained only when all of our energy sources are renewable ones? Is it marked by 50%, 30%, or 20% reduction? You state the benchmark. How will we know when we've gotten there--or is this just a problem that we will never completely solve?
On April 21st, 2009. See this statement in context.