Julian Robertson, the legendary hedge fund manager behind Tiger Management, thinks central banks are fueling bubbles throughout financial markets. "We don't have negative rates here in the States yet, but I think it's tragic that we've taken rates down this far," Robertson said this week at Bloomberg's Surveillance Primetime event. "I know the Federal Reserves all over the world are trying to ensure prosperity, but in doing so I think they are ensuring a huge bubble, which will be pricked, and we will all be hurt by it." Negative and near-zero interest rates from central banks have allowed increased borrowing......