Jeff Schumacher, founder of BCG Digital Ventures, said during a panel in Davos: "I do believe [bitcoin] will go to zero. I think it's a great technology but I don't believe it's a currency. It's not based on anything."
Bitcoin briefly surpassed $20,000 towards the end of 2017 and has since fallen by 82% to $3,600 where it's trading today. According to 99Bitcoins, Bitcoin has been pronounced dead 342 times; most recently by Kevin Dowd, Avi Simhon and Ardo Hansson.