In a world where grocery shopping and work meetings take place online, sending money from one country to another should be effortless. Yet for many millions of families that depend on remittances from relatives overseas working jobs, sending money abroad means high fees, long delays, and an avalanche of documents. The traditional remittance system—used by migrant workers, freelancers, and expats in large numbers—is crawling along. That's where cryptocurrency enters to shake things up.