Copper settled at $6.71 per pound on Comex on Tuesday, its highest closing price in history. Bitcoin traded near $79,100 after touching $81,000, its highest level since May. The simultaneous strength in metals and crypto reflects the debasement trade, in which investors rotate into scarce assets amid concerns about the value of fiat currencies. The US Treasury also doubled bond buybacks to $4 billion, stoking fears of further dollar weakness.