As blockchain and digital currency move from lack of definition to big name, some of the business' rebel gifts join the alliance of legends.Ahead of him was France's energetic President, Emmanuel Macron; Facebook originator and CEO, Mark Zuckerberg; Cheng Wei and Jean Liu, who run the Chinese rendition of Uber; and Brian Chesky, Nathan Blecharczyk, and Joe Gebbia, who established Airbnb.