a16z Crypto: Blockchain Drives Finance Toward a “Cloud Transformation,” and Wall Street Is Entering the Era of Composable Digital Assets

Guy Wuollet, General Partner at a16z Crypto, wrote that the financial industry is undergoing a “digital migration” analogous to the cloud computing era—and blockchain is emerging as the core infrastructure driving this transformation. Wall Street’s adoption of blockchain is not motivated by the ideology of “decentralization,” but rather by practical needs: mitigating counterparty risk, improving settlement efficiency, and ensuring fair ordering mechanisms. “Digital assets,” in essence, represent the migration of the financial system’s underlying architecture onto blockchains—akin to how enterprise IT systems shifted from on-premises deployments to cloud services. When financial assets run on programmable, shared infrastructure, they unlock “composability”—a defining advantage enabling assets to be freely combined and extended like software. This significantly reduces development costs and boosts overall innovation efficiency across the financial system. This trend will propel traditional finance from “closed reconciliation systems” toward “on-chain coordination networks,” and blockchain technology will gradually become a standard component of the financial infrastructure layer.