The Rise of DeFi: Beyond Bitcoin and Ethereum

Akshay Prabhakaran, Blockchain Student, Kerala Blockchain Academy

The $18 Billion Exodus: Why Decentralised Finance Has Moved Beyond Bitcoin and Ethereum

The ambitious idea that decentralised finance (DeFi) would eliminate all financial intermediaries and just operate markets via code captured the imagination of the financial community. Built on the premise of public, permissionless blockchains, the completely new system saw very rapid growth. As a matter of historical record, the total value of the digital assets in DeFi products grew from less than 1 billion dollars in 2019 to more than 80 billion dollars in 2021.

Foundational Concepts: A Quick Primer

Before getting into the movement, it’s helpful to have a brief overview of the participants:

• Digital Asset/Crypto: Tokens representing value transferable on the blockchain.
• Decentralised Finance (DeFi): Financial services run without centralised intermediaries. DeFi is also built on trust-minimised, open-source protocols.
• Ethereum: The original blockchain, serving as the settlement layer for the vast majority of initial DeFi activity due to its smart contract technology.
• Smart Contract: Blockchain-based software code that can autonomously execute, enforce, and verify relevant events as described, without human intervention, incurring predetermined terms and conditions.

However, while it had great initial success, it ultimately reached a limit on its home network. The Ethereum ecosystem was front and centre; however, it was primarily held back by major scalability issues, which led to “Gas Wars” and fees that hindered DeFi’s growth and access. Industry action was certainly necessary to survive.

I. The Structural Imperfections: The DeFi vs. TradFi Showdown

The movement “Beyond Ethereum” is motivated by the need to address two structural flaws: the limits of original blockchain architecture and the inefficiencies of TradFi.

The Speed and Control Divide

DeFi presented a structure that was fundamentally different from TradFi in two ways:

• Speed of settlement: DeFi would have a distinct advantage with respect to finality. With complete confidence, once a transaction is confirmed on the underlying blockchain, finality is almost instant. In contrast, TradFi has a lengthy settlement time due to the standard processing required by various clearing houses.

• Risk & custody: In a DeFi ecosystem, your assets live in non-custodial wallets under your control. This limits counterparty risk by placing control in the user’s hands. Conversely, credit risk in DeFi is limited through a process of over-collateralization of loans to hedge against price volatility and through the absence of formal credit scores.

Although DeFi was designed to address the slow settlement times and overall opacity of TradFi, the network’s unabated technical fees created new hurdles, in addition to the ones it already faced, for mass accessibility.

II. The Multi-Chain Revolution: The L1 Exodus

As Ethereum faced performance limits, a multi-chain reality began to emerge. These new Layer 1 (L1) blockchains were attracting developers with guaranteed better throughput and much lower transaction costs.

The Race for the Fastest Network

Algorand, Avalanche, Polkadot, and Solana were among the few new L1 challengers that really began to threaten Ethereum’s dominance. Technically, architected for speed, these chains could process thousands of transactions per second (TPS). They offered users the ability to run complex protocols for a fraction of a dollar and finally bypass the crippling gas fees Ethereum charges.

The speed of the original technology has its major downside — the speed often signifies that we don’t know for sure how much decentralisation we are sacrificing. Now, the trade-offs of blockchain architecture feel like the main tension of the revolution.

The impact of this jump into other L1s is evident in the data. Ethereum captured almost all of the market potential in total value locked (TVL), and it is evident through the cognitive shift that there is a clear shift of a significant sum of TVL and development into these new L1s.

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The Interoperability Challenge: The Risky Highways of Cross-Chain Bridges

The multi-chain dream of speed brought about an immediate headache: liquidity fragmentation. Separate blockchains like Ethereum and Solana do not share a common native language, so an asset on one chain is effectively stranded. To mitigate this issue, developers began to create cross-chain bridges. You can think of a bridge as a digital safe, where money can be locked for safety until it is unlocked as a mirror token on the new chain. This is a clever hack that facilitates the enormous movement of value and allows the entire ecosystem to unlock and engage, including Layer 2 networks, with a total value locked (TVL) of $18 billion. But these bridges are the most dangerous man-made structures in crypto. Because they control massive amounts of locked collateral, they are a point of technical failure, a target of the most damaging digital heists, and an enormous source of systemic risk across the decentralised world.

The Cost of Growing Up

With respect to overall development, the market’s fast pace created structural risks. The rapid pace of innovation has enabled immature technologies to protect high-value assets. This was only worsened by the complexities and risks of distributed ledger or smart contracts technology. The immaturity has created high costs, as it came to light in 2020 that hacks and attacks had resulted in a $120 million loss.

III. Ethereum’s Scaling Strategy: The Layer 2 Homegrown Solution

For protocols that did not want to give up the tried-and-true safety of Ethereum, the answer was not migration but augmentation: the rapid introduction of Layer 2 (L2) solutions.

The Power of Rollups

L2 solutions accomplish this by performing computations off-chain, which alleviates load on the main chain while ultimately settling the transaction data on the secured Ethereum main chain. The most high-profile scaling technology is Rollups. Rollups are protocols that “roll up” (combine) hundreds of transactions into a single, low-cost transaction and then settle that transaction on Ethereum’s main chain, significantly reducing its cost.

• Optimistic Rollups: Dominant players such as Arbitrum and Optimism assume all transaction data is valid, while adding a challenge period for possible fraud protection.

• Zero-Knowledge (ZK) Rollups: These protocols add even more security and faster finality using cryptographic proof.

Simply stated, the L2 ecosystem has quickly become paramount. The Total Value Locked (TVL) across all Layer 2 chains has already surpassed $18 billion, proving that L2 is successfully providing DeFi with the key infrastructure for transactions in almost real-time.

IV. DeFi 2.0: Maturation and Specialisation

Beyond Ethereum’s development, it continues to develop higher-level financial products through the adoption of advanced services.

The Governance Engine: The Paradox of Decentralized Autonomous Organizations (DAOs)

If DeFi really serves as a complement or substitute for a centralised tech product, who gets to be the boss? A Decentralised Autonomous Organisation(DAO) does. The idea is straightforward: instead of a CEO, the organisation’s central rules are encapsulated and executed strictly through code (smart contracts). Users who hold governance tokens effectively become “owners” of a share of the protocol. Governance tokens allow individuals to vote on everything from changing interest rates to approving a significant protocol upgrade. Within this model, however, we find a central paradox. True decentralised ideals are often vowed by apathetic voters. More importantly, power, when it decides to exercise its rights, becomes centralised among either initial investors or large funds with the majority of governance tokens — the “whales.” Ultimately, a system meant to disband a centralised decision-making body often ends up being governed by a small, empowered central group.

Advanced Credit and Risk Management

The DeFi credit markets now exhibit complicated forms of innovation:

• Flash Loans: A feature that allows users to borrow for seconds from an uncollateralized and decentralised credit protocol as long as the borrowing is returned in an atomic transaction.

• Credit Delegation: A service that allows a depositor to choose a trusted safeguarding entity to borrow against a collateral base of the deposit. The loan is typically legally bound by the terms of a Ricardian contract that is anchored to a composite smart contract.

Risk Management and the Money Lego Architecture

The Safety Net: Decentralised Insurance

Although we often pay tribute to the innovative aspects of the DeFi space, we must also acknowledge its risks. This critical safety vertical is a subset of protocols, such as Nexus Mutual, that tend to address the distinct risks within the ecosystem, primarily associated with smart contract failures or protocol hacks. Decentralised insurance, as a factor of self-care, is the critical self-protective mechanism the ecosystem needed to put in place to address its inherent growing pains.

The Builders: Asset Aggregators

If we think of each protocol as its own tool, then Asset Aggregators are the master builders of the entire architecture. They’re commonly called Money Legos because they automatically connect many different DeFi tools (or primitives) in the ecosystem (e.g. Yearn Finance) to optimise liquidity and yield for users. The ability to mix and match products with such flexibility is not only neat but also core to DeFi innovation.

V. The Final Convergence: Institutional and Regulatory Tides

The last feature of the DeFi revolution is, of course, its friction with the traditional financial system; however, it is this friction that is the ultimate hurdle to DeFi becoming mainstream.

The Regulatory Imperative

The primary source of friction is between decentralisation and national legal regimes. For global regulators, it is a significant challenge to apply global AML and KYC requirements to a system without a central office. Friction is currently pushing the industry toward Institutional DeFi , where formal, regulated financial institutions are beginning to adopt DeFi structures. This is a major compromise of principle, but it serves a necessary function by bridging the gap between DeFi and traditional financial institutions (TradFi).

Conclusion: The Future of Trust

The DeFi initiative has evolved in ways which are completely contrary to the constraints of Ethereum, spurred by and as a response to genuine technical (scaling) and economic (specialisation) requirements. The ecosystem now continues to develop infrastructure that must be reliable, as well as at least limit a reliance on trust. The final metric of DeFi’s success will be its ability to hold billions in assets while also enabling sufficient regulatory integration.

Call to Action: As the market evolves, what will better serve the community: The pure speed of the Layer 1s or the established security of the Ethereum Layer 2 ecosystem? Let me know your thoughts in the comments!

References & Further Reading

1. Wharton Initiative on Financial Policy and Regulation. DeFi Beyond the Hype: The Emerging World of Decentralised Finance. May 2021.
2. CoinGecko. Top Layer 2 Chains Ranked by Total Value Locked (TVL). (Accessed: October 27, 2025).
3. Northern Trust. The Road to Institutional DeFi. 2024.
4. TDeFi. Layer 2 Solutions: Boosting Scalability and Efficiency. November 15, 2024.
5. KuCoin. Top 10 Layer-2 Crypto Projects to Watch in 2025. October 14, 2025.