Robert Friedland looks at the copper market and sees what others don't, at least not yet - comments on metals markets in general.

https://www.zerohedge.com/commodities/billionaire-mine-owner-warns-copper-market-headed-train-wreck-supply-woes-emerge

For those who don't know, Friedland is to the modern copper market as Henry Ford was to automobiles.  Interestingly, he and Steve Jobs were close friends going back to before they were apple pickers together at Friedland's uncle's orchard in Washington State.   Both eventually brought massive disruption and innovation to the business world.