The fightback against Big Tech’s feudal lords has begun. The use of data, after all, is now the world’s biggest business. Some $1.4trn of the combined $1.9trn market value of Alphabet (the owner of Google) and Facebook, comes from users’ data and the firms’ mining of it, after stripping out the value of their cash, physical and intangible assets, and accumulated research and development. The Economist