Anyone seeking evidence that the standard leftist/socialist dogma may not work well need look no further than two western hemisphere governments, Venezuela and Puerto Rico, as both are now being wracked by financial and social upheavals.

There is one last indicator that I believe may be the most important of all. That is the “Index of Leading Economic Indicators” (LEI), which is a compendium of those economic indicators that point toward future growth, and LEI has just reached historic highs, far exceeding previous peaks in 1999 and 2006.

There is no question the economy will not always be as good as it is now. There is also no doubt that someday the lack of exploration and the ore in existing mines running out will come home to roost.