Speaking at a WSJ event, Bridgewater boss Ray Dalio says Bitcoin's (BTC-USD) "biggest risk is its success ... No government wants an alternative currency."At least one person at Bridgewater has a different opinion, and that's the hedge fund giant's CFO, who just exited to become CFO of NYDIG.Bitcoin today continues in its tight range of the past few weeks at $56.1K.On crypto in general, Dalio seems more bullish on the possibilities in being disruptive to the traditional finance industry.Moving to the overall environment, Dalio takes note of bubbles all over the place thanks to the Fed's promise not to tighten monetary policy for a long time. Stan Druckenmiller on CNBC this morning voiced similar concerns.