PolyFlow Insight: Learning from Banking History to Envision the Future of PayFi
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PolyFlow Insight: Learning from Banking History to Envision the Future of PayFi
PolyFlow is paving the way for PayFi.
Navigating Web3 tides with focused insights
Stablecoins, as a payment innovation, simplify the way value is transferred. These digital currencies are typically pegged to the U.S. dollar and serve both as a store of value and a medium of exchange. Although stablecoin development has only spanned about five years, they have become the "killer application" in the crypto space, surpassing major payment networks in annual transaction volume and creating a market parallel to traditional financial infrastructure.
With hundreds of millions of users and trillions of dollars in transaction volume, stablecoins have become a crucial component of the financial ecosystem. Yet, the category's definition and significance remain incompletely understood—let alone the transformative role of PayFi.
By reviewing history, particularly patterns of banking rise and decline, we can better understand the trajectory of stablecoins and anticipate the future of PayFi.
In his article “A Useful Framework for Understanding Stablecoins: The History of Banking,” A16z partner Sam Broner offers valuable perspective on the future development of stablecoins by drawing parallels with U.S. banking history, while also illuminating the potential futures of PayFi and related domains.
The Historical Path of Banking
Like many innovations in the crypto space, stablecoins may follow a developmental path similar to that of banking. Their evolution begins with issuance—akin to early bank deposits and paper money—gradually encompasses on-chain DeFi activities, and ultimately drives the emergence of PayFi.
Broner’s article outlines the history of U.S. banking, offering insightful parallels for stablecoin development. Before the Federal Reserve and the Federal Deposit Insurance Corporation (FDIC) existed, different forms of currency held varying values based on the issuing institution’s reputation and ease of redemption. Banks had to balance profit-seeking through investment of deposits against ensuring deposit safety. This tension is mirrored in today’s stablecoin landscape.
If fiat-backed stablecoins represent the current, widely adopted stage of monetary issuance, then asset-backed stablecoins are likely the next evolutionary step for credit creation in crypto. Today, banks invest deposits into various assets—including loans—which are essential for expanding the money supply and enhancing capital efficiency. Similarly, stablecoins provide functions akin to bank deposits and paper money in a decentralized, self-custodial form. As decentralized lending protocols mature, asset-backed stablecoins are expected to gain traction, much like how banks expand the money supply through lending.
This is where PayFi comes in. PayFi builds, expands, and deepens stablecoin payment networks. By leveraging blockchain and smart contract technologies, PayFi integrates DeFi protocols to deliver global on-chain financial services such as lending, wealth management, and investing. By merging payments with financial services on a blockchain settlement layer, PayFi leverages the strengths of both stablecoin payments and DeFi to improve efficiency and enable seamless value transfer.
Types of Stablecoins
Broner categorizes stablecoins into three main types: fiat-backed, asset-backed, and strategy-backed synthetic dollars (SBSD). Fiat-backed stablecoins resemble banknotes from the national banking era—directly redeemable for fiat currency and backed by reserves. Asset-backed stablecoins mirror the way banks create new money through lending, using highly liquid on-chain collateral.
Due to their technical structure, SBSDs inevitably face regulatory challenges and user experience barriers. Currently, they primarily function as investment instruments within DeFi products and struggle to overcome traditional finance’s fundamental trade-off between yield, liquidity, and risk. As such, they are ill-suited to serve as reliable stores of value or mediums of exchange.
Recent innovations—such as interest-bearing stablecoins backed by U.S. Treasuries and novel models like PayFi—are breaking through these financial constraints. PayFi integrates DeFi into payments, transforming each dollar into intelligent, autonomous capital. It turns idle funds into productive assets, generating returns while preserving liquidity—making every dollar work.
As more economic activity migrates onto blockchains, two key developments are foreseeable: a broader range of assets becoming eligible collateral in lending protocols, and asset-backed stablecoins capturing a larger share of on-chain money supply. Over time, other types of loans could be securely issued on-chain, further expanding the on-chain money supply. While stablecoins alone cannot achieve this transformation, PayFi can.
Key Takeaways
While stablecoins may appear to disrupt traditional finance through payment innovation, it's essential to recognize that the fundamental attributes of money—as a unit of account—and its core functions—as a medium of exchange—remain unchanged. Thus, stablecoins can be seen as carriers or manifestations of money.
Given their monetary nature, development patterns observed in modern banking history offer valuable insights for stablecoins. Broner’s article is especially significant because it goes beyond mere issuance to emphasize how banks use credit as a tool for money creation. This perspective charts a course for stablecoin evolution, which currently resides in the monetary issuance phase.
Fiat-backed stablecoins represent the present stage, while asset-backed stablecoins are poised to become the next frontier in credit creation. As more illiquid real-world assets (RWA) are tokenized and brought onto blockchains, their primary role will not be circulation but serving as collateral—forming the foundational assets underpinning these asset-backed stablecoins.
Strategy-backed synthetic dollars, primarily used in DeFi yield products, face the classic financial trilemma: balancing yield, liquidity, and risk. By integrating DeFi with payments in the crypto realm, PayFi ultimately transforms every dollar—including SBSDs—into intelligent, autonomous capital, ensuring every dollar works.
In the end, the focus remains on essence: creating stablecoins, synthetic dollars, or specialized currencies designed to reinforce money’s fundamental properties through digital currencies and blockchain technology. For PayFi, the goal is to enhance core functionalities, improve monetary efficiency, reduce operational costs, strictly manage risks, and fully harness money’s role in facilitating value exchange and driving socioeconomic progress.
PolyFlow Is Paving the Way for PayFi
Stablecoins have the potential to revolutionize the payments industry by enabling cheaper, more efficient remittances. PayFi accelerates this adoption by creating money supply and advancing stablecoins to their next stage of development—mirroring the historical path of banking evolution.
For PolyFlow, the mission is clear: build solutions that connect traditional systems with blockchains, making every transaction meaningful. As PayFi infrastructure, PolyFlow leverages cutting-edge blockchain technology to drive innovative applications, accelerate adoption, and guide users toward a new financial paradigm. It aligns with the original vision of the Bitcoin whitepaper, unlocking the full potential of Web3.
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