Bullish on Ethereum: The Potential to Become the Global Financial Settlement Layer
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Bullish on Ethereum: The Potential to Become the Global Financial Settlement Layer
Ethereum's design as a settlement layer rather than a single chain explains why its market capitalization is so high.
Navigating Web3 tides with focused insightsAuthor: Tim Robinson
Compiled by: TechFlow
Ethereum is the settlement layer for global finance — it’s the only blockchain capable of fulfilling this role.
If you're surprised by that statement, this article is for you. Other blockchains will continue to host many useful applications and serve specific niches, but the global financial system will run on Ethereum.
What Is a Settlement Layer?
A settlement layer isn’t a chain for consumers to use apps or send money to friends — it’s the foundational chain upon which other chains are built. It focuses on five key functions:
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Securing other chains by storing data and verifying its correctness
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Deploying tokens and assets used across the entire chain ecosystem
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Managing shared state across multiple chains
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Securing native bridges between all connected chains, eliminating bridge risks
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Providing interoperability across all connected chains, enabling infinite liquidity transfers in the safest way with no counterparty risk
These chains built atop Ethereum are called rollups or Layer 2s because they bundle data into blobs and store them on Ethereum.
Ethereum's design as a settlement layer rather than a single monolithic chain explains why its market cap is so high despite appearing slower and more expensive than newer chains at first glance.
Why Can't the Global Financial System Run on a Single Chain?
Many blockchains claim they can process 10,000, 50,000, or even over 100,000 transactions per second. That would be great if they could achieve it.
The problem is that the scale of a global financial system will be at least 3 to 4 orders of magnitude larger — approaching tens of millions to hundreds of millions of transactions per second, possibly more once AI agents come online.
"But credit cards only need 50,000 transactions per second to handle all global payments," someone might reply.
That number is correct, but you haven't yet grasped the future scale of financial systems.
Think back to before the internet emerged in the 1980s — how many TV shows, books, and general information existed? Content creation and distribution were limited to a few publishers, and nearly everyone was forced to consume information from just a handful of channels.
Then came the internet, allowing anyone, anywhere, to start a blog, create a video channel, or simply share their views with the world — becoming influencers.
The amount of content didn’t increase 10x or even 100x — it grew by a million times.
When finance is truly liberated — when anyone can invest in or trade any asset, not just bonds, stocks, and real estate like today — the financial system will undergo a similar explosive expansion.
Stocks and bonds will seem as boring to future generations as traditional TV does to the YouTube generation.
So what will people do?
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They’ll invest in games, bands, songs, artists, bloggers, influencers, authors, books, and videos they love. They’ll fund projects anywhere and earn returns from them.
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They’ll collect and trade in-game items — millions of players trading across thousands of games.
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They’ll conduct Wall Street-style financial transactions, but globally accessible to anyone who wants to participate.
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They’ll bet on anything.
It won’t just be humans conducting these trades — there will be millions of bots and AI agents trading billions of assets across millions of markets, trying to gain an edge.
Do you still think all this can run on a few replicated PCs around the globe?
Maybe none of this will happen — governments might crush the fun, and we’ll remain stuck trading boring stocks and bonds forever, but I doubt it. The younger generation sets the tone for the future, and they’re far more interested in meme coins and game items than traditional financial assets, just as they prefer YouTube over TV.
Why Does Global Finance Need a Settlement Layer?
Strictly speaking, it doesn’t have to — after all, we already have a financial system running on many independent databases. But when your system connects to all others through a standardized layer, the improvements in speed, security, and interoperability are undeniable. Ignoring this is like still running your company on private intranets after the internet has taken over the world.
Another critical attribute of Ethereum is its neutrality — even hostile nations or corporations can use this platform to settle transactions. In the past, when two countries were at war, they used gold to settle debts because they didn’t trust each other’s currencies or financial systems. Now, they can transact in any neutral cryptocurrency on Ethereum.
Why Would Every Financial Institution Want Its Own Rollup?
When Ethereum first launched in 2015, many financial companies began experimenting with the technology — not to become part of the network, but to run their own private blockchains among partner firms. JP Morgan started Onyx, Microsoft launched Ethereum Blockchain-as-a-Service, Amazon created AWS Managed Blockchain. Companies wanted private blockchains to maintain control — implementing compliance, KYC (Know Your Customer), AML (Anti-Money Laundering), and even pausing the chain during hacks.
None of these private blockchains succeeded because they ignored the two reasons blockchains are valuable: composability and permissionless innovation. Amazing things happen when people collaborate, build complementary products, and anyone can contribute. Remove those elements, and you’re left with nothing more than a slower database.
Because Ethereum is a Layer 2-centric ecosystem, you’re free to independently build your own sub-ecosystem with unique features while remaining part of the broader Ethereum ecosystem. — Vitalik Buterin
With rollups, companies get the best of both worlds — creating chains with any restrictions or controls while maintaining interoperability with the Ethereum ecosystem. They can enforce KYC, AML rules, manually review transactions, and remove bad actors — just as they do on centralized platforms.
Now users can seamlessly migrate to their platforms within minutes, attracting developers to deploy useful applications for their customers. If their rollup uses the same language as others, these apps can go live in a day. Developers earn revenue from fees, while companies get additional services at no cost.
Coinbase pioneered this strategy — their Base chain launched just a year ago and now hosts over 250 applications, none of which Coinbase paid a cent to build! Coinbase incentivized developers with smart wallet access to millions of users and billions in capital — a true win-win.
This product expansion strategy via rollups is gaining traction across the crypto ecosystem — Kraken, OKX, and Crypto.com have all launched their own Layer 2s.
Blackrock, the world’s largest asset manager, has already recognized the shift and pivoted ahead of others. They recently launched a $100 million fund on Ethereum, and Larry Fink is optimistic about tokenizing everything to achieve better interoperability and lower overhead than traditional financial systems. Launching their own rollup and building an ecosystem ahead of others is only a matter of time.
Once financial institutions realize what Coinbase is doing and what Blackrock is attempting — gaining users, liquidity, and a vast pool of free developers — launching their own rollup becomes an obvious choice.
Why Can Only Ethereum Support This?
Ethereum is the only blockchain highly focused on supporting thousands of chains while maximizing decentralization, uptime, and security. Current user experience in this ecosystem may be poor, but that’s a short-term sacrifice to scale to millions of TPS within the next decade. Improving UX is much easier than rebuilding core infrastructure, and many projects are already solving cross-chain challenges.
This system of serving as a support layer for thousands of other chains cannot be easily replicated by any other network — it requires comprehensive ecosystem transformation. You must build bridges, interoperability layers, shared sequencers, cross-chain MEV solutions, wallets handling multiple chains, and applications recognizing cross-chain assets. Ethereum is currently going through all these growing pains to prepare for becoming the foundation of finance.
Moreover, Ethereum is already highly optimized for this world:
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It’s designed to run on minimal hardware with only standard internet connections, enabling nodes to spread globally and making the network nearly indestructible.
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It’s highly decentralized at the staking layer — no single entity holds more than a few percent of staked tokens. Attacking the chain would require coordination among numerous global entities, which is nearly impossible, and attackers could be slashed by the community if attempted.
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It’s also highly decentralized at the software layer. Ethereum has 5 execution clients (Geth, Nethermind, Besu, Reth, Erigon), with 4 more in development (Megaeth, Monad, GPU-EVM, Ethereum Rust), and 6 consensus clients (Teku, Lighthouse, Prysm, Nimbus, Lodestar, Granadine). These are developed by different teams using various programming languages worldwide. This makes systemic bugs extremely unlikely — even if one client has a severe vulnerability, it won’t bring down the entire network.
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All major upgrades aim to support this settlement layer design. Ethereum strives to provide maximum data availability for Layer 2s and focuses on rapidly verifying ZK proofs and other essential technologies enabling rollups and cross-compatibility.
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The Ethereum community cares more about maximizing decentralization than any other chain. A large portion of the community runs home staking nodes, operates personal validators, urges big companies to diversify client usage, and encourages users to shift from large staking providers to smaller ones.
Yes, other ecosystems may try shifting toward this rollup-centric world, but they all face the innovator’s dilemma — no company or group wants to develop technology that undermines their current products. Moreover, everyone passionate about building monolithic chains has already left Ethereum for other projects, while almost everyone committed to this highly scalable, multi-chain future is working on Ethereum development or research. No other team has both the vision and the resources and talent to build the necessary ecosystem to compete.
What About Bitcoin?
Bitcoin is the most likely competitor to become such a settlement layer, as it, like Ethereum, prioritizes decentralization and security above almost everything else. Unfortunately, Bitcoin’s greatest strength is also its biggest weakness — it never hard forks. Not hard forking means Bitcoin cannot implement many disruptive changes required to make rollups viable. Without these changes, adding rollups and all the infrastructure needed to make them trustless, secure, cheap, and fast becomes an extremely complex task.
Even assuming all its Layer 2 visions were realized, it would still be slower, more expensive, and more complex than Ethereum, lagging years behind in ecosystem development — making it difficult to compete.
What’s Wrong With Making the Base Layer Faster?
Everything in tech involves trade-offs. When the base layer takes on more work, node requirements increase, reducing the number of people and locations able to run them, thus lowering decentralization. It also increases failure risk and downtime — the worst possible outcome for a base layer, since every rollup built atop it would also go offline.
Thanks to the magic of ZK proofs, base layer nodes can verify millions or even billions of transactions across thousands of Layer 2s in milliseconds. Nodes processing these transactions and generating ZK proofs need to be powerful, but verification nodes can be very small. This means the base layer’s sole real tasks are storing data, verifying ZK proofs, and staying online. The lower the hardware requirements, the better it performs this function.
Why Do We Need a Chain Ecosystem Settling into Ethereum?
There are already some chain ecosystems capable of interoperating — Cosmos being the largest. These ecosystems make more sense than believing a single chain can do everything, but they share a critical flaw: lacking a maximally secure settlement and interoperability layer connecting them.
Without this foundational layer, you must individually assess and trust each chain’s security properties — which is extremely difficult to reason about. And as tokens flow across the ecosystem, you must trust not just the origin chain, but every intermediate chain the tokens pass through before reaching their destination.
Having a shared foundational layer also creates a place to deploy cross-chain tokens or store shared state, ensuring they’re protected by this layer and can move seamlessly across all rollups.
Is This Inevitable?
In the long term, this trend seems as inevitable as Linux taking over the server world — only accelerated by financial incentives. A shared, open standard platform that everyone uses but no one controls or extracts rent from is incredibly powerful and attractive to companies and users alike.
The current financial system is broken, fragmented, and hard to fix because there are almost no truly neutral parties to coordinate it. And when neutral parties do emerge, they often seek rents or impose their own moral codes once achieving monopoly status. By removing human control over the network, we’ll obtain a financial system that best serves everyone. This is the financial internet we’ve been waiting for — it’s only a matter of time before everyone realizes it.
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@timjrobinson
