The way things are going, the digital currency Bitcoin will start to malfunction early next year. Transactions will become increasingly delayed, and the system of money now worth $3.3 billion will begin to die as its flakiness drives people away. So says Gavin Andresen, who in 2010 was designated chief caretaker of the code that powers Bitcoin by its shadowy creator. Andresen held the role of "core maintainer" during most of Bitcoin's improbable rise; he stepped down last year but still remains heavily involved with the currency (see "The Man Who Really Built Bitcoin").
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