Bitcoin rallied more than $3,000 in a day, with its price more than doubling in 10 days, as the cryptocurrency crossed its own crazy benchmarks. The latest rally comes on expectations that new bitcoin derivatives products will boost demand. This ‘speculative frenzy’ has boosted its market value so much that it's now worth more than 488 of the 500 U.S. companies in the S&P500 stock index. This is a video game, and we are all players.