Until, of course, in 2013 the Silk Road was shut down by FBI agents and Mr Ulbricht, then 29 years old, was arrested in the science-fiction section of a San Francisco public library. In 2015, after a four-week trial,

Law enforcement said Ulbricht created the “most sophisticated and extensive criminal marketplace” on the internet.

Console Wars’ duo Jonah Tulis and Blake J. Harris have conducted more than 60 hours of interviews with Ulbricht, who became a cause célèbre among libertarians and cryptocurrency enthusiasts after being handed two life sentences.