Consensus: Invest, a digital asset investor conference hosted by CoinDesk, was in full swing in New York on Tuesday. Asset managers, traders, entrepreneurs, and other interested parties packed in to hear all things related to blockchain and cryptocurrency, but they probably weren't expecting one of the biggest bitcoin bulls to talk bubble.

"This is a bubble and there is a lot of froth. This is going to be the biggest bubble of our lifetimes... But bubbles happen around things that change the world," CEO of hedge fund Galaxy...