When it comes to social impact of cryptocurrencies and blockchain, there are two schools of thought. One says that a blockchain is a great tool of decentralization and disruption in both tech and finance, and that decentralization specifically means more freedom. For example, Bitcoin users are very big on the fact that supply of Bitcoin is not controlled by central banks and cannot be inflated at will (they do have a point). However, there is a counterpoint that looks at the blockchain as a public ledger. As such, they argue, it is a great tool for international or global currencies and other systems that can centralize finance and possibly private data in one place to keep track of it. Where is the truth here? Learn in this talk.