Gold just broke above $4000 for the first time ever, and Joe Cavatoni believes it's more than just a safe-haven play. Cavatoni points to growing concerns over the U.S. dollar's status as a reserve currency, rising debt levels, and central banks' continued gold buying sprees. He also notes that September saw a record $17 billion in gold ETF inflows, with Q3 notching the strongest quarter on record.