prompt: What makes Bitcoin different from previous attempts at digital currencies?
chosen.role: system
chosen.content: A chat.
chosen.role: user
chosen.content: What makes Bitcoin different from previous attempts at digital currencies?
chosen.role: assistant
chosen.content: Satoshi Nakamoto cited the centralized nature of previous attempts at a digital currency as one reason that they failed. Nakamoto believed a decentralized, trustless system like Bitcoin could eliminate the "single point of failure" that doomed them.
  The Bitcoin whitepaper also indicates that Nakamoto attempted to solve many of the previous issues with digital currencies, including the double-spend problem, the need to trust third parties to hold users' funds, and previous issues with e-commerce that included the risk of chargeback fraud and transaction fees that made small-value transactions impractical.
rejected.role: system
rejected.content: A chat.
rejected.role: user
rejected.content: What makes Bitcoin different from previous attempts at digital currencies?
rejected.role: assistant