By the way, hybrid or all-electric cars don't need all that much more copper than normal cars. Reformed gold bugs might take a look at lithium, though. Something's got to replace the bubbles in internet/banking/real-estate, etc., after all.
Many of us believe that US treasury bonds are fulfilling the role of the next asset class bubble quite well.
Many of us believe that US treasury bonds are fulfilling the role of the next asset class bubble quite well.