The need for decentralization wasn't present before. Things and ideas that evolve and come into mainstream usage are because of a need. There was a dire need to have a decentralized clearing mechanism based on the Internet and payments - Bitcoin does just that. So does Ripple (improving upon Bitcoin IMHO).
If Bitcoin aims to decentralize finance, why did financial systems become centralized in the first place?
Who built the first electronic payment processing system?1 ansWhat conditions does a society need before it can successfully implement fiat currency?1 ansBefore wire-transfer technology existed, how were funds moved from one person to another?1 ansWho invented the credit card, and how did it become a widely used payment method in the United States?1 ans