Bitcoin, which has surged roughly 300 percent in 2017, is certainly a "disruptive" technology but won't see widespread use, economist Mohamed El-Erian said Wednesday. "The current pricing assume massive adoption, and I don't think governments will allow the amount of adoption that's currently priced in," Allianz's chief economic advisor said on CNBC's "Squawk Box." Asked what would be a reasonable price for bitcoin, El-Erian said: "I would say at least half of what it is, a third of what it is." El-Erian believes the cryptocurrency will exist as a peer-to-peer means of payment. "It exists in that world," he said, "but ... (full story)