If bitcoin is a better gold or seen as a type of gold-like asset, then it could be in the trillions on a market cap," Tyler Winklevoss told CNNMoney in 2015. "We do feel those are very real possibilities." The twins have never sold a single Bitcoin, reports The Telegraph, noting that only a handful of Bitcoin wallets hold more than $1 billion worth of the cryptocurrency. One of those wallets belongs to the mysterious inventor, known only under the pseudonym of satoshi nokomotive.