Imagine a piece of real estate or a corporate loan being bought and sold globally in just a few minutes. Real World Assets (RWA) on the blockchain make this possible. The efficiency and returns are exciting, but the risks are magnified — if market confidence collapses in an instant, the consequences could be more severe than you might think. This is why there are in-depth discussions in both academia and industry about the safety and potential risks of RWAs.
Back in 2008, when the U.S. subprime mortgage crisis erupted, mortgage-backed securities were packaged into various derivatives: CDOs (Collateralized Debt Obligations) and CDS (Credit Default Swaps). Simply put, banks bundled a large number of subprime mortgages with poor credit and sold them, then used CDS as “insurance,” misleading investors into believing these bonds were safe. As a result, the risks inherent in the debt were concealed, but once housing prices fell, a chain reaction erupted instantly: banks suffered huge losses, the real estate market collapsed, and the global financial system fell into chaos.
The fundamental lesson of this crisis is that tying illiquid assets to a highly liquid market does not make them safer; instead, it accelerates the spread of risk.
If real estate in the physical world is put on the blockchain, and property rights exist in an SPV (Special Purpose Vehicle), then tokens representing fractional ownership are issued, similar risks may arise again. Assets that were originally static can suddenly be traded around the clock; they may be frequently bought and sold, mortgaged and borrowed against, or even packaged into “safe yield” products within a single day. However, the houses themselves have not changed; if tenants default or property values decline, the impacts in the real world may take months or even years to manifest, while the on-chain market could collapse in minutes. A single tweet, an oracle delay, or a panic sell-off could trigger automatic liquidations, dragging down the entire lending protocol and stablecoin ecosystem.
Against this backdrop, professors from New York University and Columbia University engaged in a debate: Can Ethereum support a trillion-dollar RWA market?
Austin Campbell pointed out that the decentralization of Ethereum and the feature of “code is law” could actually be a flaw when dealing with assets that interact with real-world laws. He is concerned that on-chain systems lack sufficient response capability when faced with complex attacks. The Bybit hacking incident is just a small example; if the target of the attack were stablecoins like Tether or USDC, the entire DeFi ecosystem could face disaster.
Omid Malekan reminds everyone that technology can provide transparency and efficiency, but it cannot eliminate real economic risks. The security of on-chain systems is closely related to off-chain events, and the value and risks of RWA must consider both simultaneously.
This debate resonates well with the on-chain risks discussed earlier: whether it is the price fluctuations of assets or the security vulnerabilities of smart contracts, they can be rapidly amplified on the chain.
Imagine a scenario: an emerging agricultural technology credit platform packages $200 million in small farm loans and tokenizes them, with each token corresponding to a small portion of the farm loan income, offering an annualized yield of 6%-10%. Investors consider the tokens to be secure and pledge them to a blockchain lending protocol to earn additional returns.
However, as a drought led to reduced yields on some farms, some loans became overdue. The on-chain oracle only updates prices once a week, and the tokens still show stability. Panic news spread in the market, and some investors began to sell off. The on-chain liquidation mechanism was activated: robots automatically sold off collateral, further driving down the token prices. Within minutes, the agricultural loan risks that should have manifested slowly were amplified into a complete market turmoil by the on-chain mechanism. The farms in the real world still exist, but the on-chain token value and confidence have been instantly shaken.
This scenario illustrates that even if profit promises seem stable, real economic issues can still be quickly amplified through on-chain mechanisms, creating a chain reaction.
RWA serves as a bridge connecting traditional finance and decentralized finance, indeed bringing efficiency, composability, and new income opportunities. We cannot stagnate due to fears of a crisis. The digital age requires builders, not bystanders.
As regulation and technology continue to improve, RWA risks will gradually be mitigated. You, who learn and apply new technologies, are the driving force behind this round of financial revolution.