That doesn’t require a blockchain based system though. A single entity can secure a crypto currency. You can convert PayPal directly into US dollars at your ba

That doesn’t require a blockchain based system though. A single entity can secure a crypto currency. You can convert PayPal directly into US dollars at your bank, so I don’t think they would see any benefit to supporting such a distributed token system unless the could make a cut on every transaction. I’m having a hard time seeing Facebook being able to support a stable coin without being subject to the same regulations and cost as any other system. Perhaps they will get a competitive advantage through data mining and could charge smaller transaction fees.