Lest anyone misunderstand, I am not disputing JB's predictions.  While copper supplies are more than adequate in the very near term, they are not beyond that period.

Adding to eventual declining copper volumes coming from Grasberg, The Philippine's is on a nearly lunatic crack-down on mining - huge producers -, and China is beginning to do the same thing, but perhaps for more urgenly needed environmental reasons than is happening in PI.

These are huge complications to copper supplies, if world economies are to be sustained or expanded.