One of first crypto millionaires has turned his back on digital currencies.
Speaking to the New York Post, Erik Finman, an early investor in cryptocurrencies, said it's all going to the bin.
"Bitcoin is dead, it's too fragmented, there's tons of infighting. I just don't think it will last," he said.
"It may have a bull market or two left in it," he added, "but long-term, it's dead."
He was particularly harsh in reference to Litecoin, which has plunged 95 per cent since its peak.