" You hold with yourself all the hope that you made the right choice, but none of the clairvoyance of actually knowing for sure. And yet, there may be some comfort in that feeling—knowing the die is cast, the rubicon crossed and all that is left is the march forward."

Siri explained that today, we have a perfect way of measuring the United States economy on not only political or financial terms, but also a scientific one: the use of energy.