First there were social networks, then came Bitcoin. Then Bitcoin 2.0. Now, directly over the horizon, comes a new platform—a “social network 2.0” called Gems. This social network and messaging app is similar to Facebook and WhatsApp, but its developers have designed it with crucial differences. Gems will be decentralized, and it will reward its users for its success. Five years after the invention of Bitcoin, the latest innovators are building applications that work on top of the Bitcoin protocol and that make use of Bitcoin blockchain technology. One of the largest contenders in the Bitcoin 2.0 sphere is Counterparty, …