On July 17, about a week before Donald Trump took the stage in front of 8,000 or so Bitcoin fans in Nashville, David Bailey, the chief executive officer of Bitcoin Magazine, giddily explained how he and his friends had gotten the candidate to come. Bailey, a baby-faced 33-year-old with a bushy beard, was appearing on a podcast called Galaxy Brains, and he was telling the host, a crypto researcher, that it was so crazy he’d started writing a diary of sorts to keep track of everything that was happening. “You could never publish this, because literally no one ...