This month, Bitcoin became legal tender in El Salvador. This is a historical landmark in the world of finance, and the reception has been unsurprisingly divided. On one hand, it marks a move towards an exciting future for Bitcoin, globally. It also presents an opportunity for Bitcoin to deliver on its premise: to empower a community failed by the banking system. El Salvador is an ideal population for Bitcoin, as the vast majority (70%) do not have a bank account, and a quarter live below the po