Cryptocurrency entrepreneur Julian Hosp says bitcoin's rapid rise isn't over yet. But there's a catch. "I think we're going to see bitcoin hitting the $60,000 dollar mark, but I also think we're going to see bitcoin hitting the $5,000 dollar mark," said Hosp, co-founder and president of TenX, a firm that wants to make it easier for people to spend virtual currencies. "The question is though, 'Which one is it going to hit first?'" he said. Numerous high-profile critics and several national governments have warned of the dangers of investing in cryptocurrencies, which they say are likely to crash because nothing ... (full story)