In this Quartz article, Don reviews the feudal nature of our relationship to data companies such as Google and Facebook, and prescribes blockchain as the tool that can return data ownership back to the individual that creates that data. This is self-sovereign identity, run on a blockchain.
Read the full article: https://qz.com/1706221/don-tapscott-on-using-blockchain-to-take-back-your-digital-identity/