" After the behemoth social networks had died off in the twenties—victims of changing legal and cultural privacy concerns—they’d been supplanted by self-managed private social networks. Designed by white-hat, open-source, anti-corporate coders, the new do-it-yourself PSNs were free, easy to set up, decentralized, and had no corporate overlords. Con had read somewhere that there were more than twenty billion private social networks worldwide interconnected in a complex latticework. "

― Matthew FitzSimmons , Constance (Constance #1)