Welcome to the era of McRollups.
Author: Alon Muroch
Ethereum Rollups have become the franchise model of Web3 — they are autonomous platforms, strategic products, and programmable economies. In many ways, they embody a modern franchise model: autonomous yet aligned with the brand, interoperable yet built for specific purposes, flexible yet rooted in common standards.
Ethereum as the Franchisor
In this model, Ethereum plays the role of the franchisor, much like McDonald's headquarters, setting brand standards and core rules while providing the infrastructure to ensure scalability. This includes:
✅ Global transaction finality through Ethereum's validator set
✅ A neutral and trustworthy settlement layer
✅ Standardized tools: Solidity, EVM, wallets, cross-chain bridges, RPC
✅ A vast developer ecosystem and trust foundation
The value of Ethereum lies not only in its technical aspects but also in its institutional and cultural dimensions. When a Rollup connects to Layer 1, it inherits Ethereum's "brand authorization." The trust of users and builders stems from: Ethereum's cryptographic technology + community consensus + decentralized values.
Rollups as Franchise Branches
Rollup operators are franchisees, operating exclusive "on-chain storefronts" and customizing their environments while taking on operational responsibilities.
Building on Ethereum's credibility, they can:
✅ Custom Runtime: EVM, zkVM, WASM, or custom virtual machines
✅ Custom Fee Structure: 0 Gas experience, fiat-pegged pricing, rebate mechanisms
✅ Governance Mechanisms: DAO, multi-signature, token voting, or social recovery
✅ Modify Infrastructure: Custom sorters, data availability layers (DA), cross-chain bridges, proof systems
✅ Extend Functionality: Identity layers, privacy precompiled contracts, AI agents, etc.
In short, Rollups are application-specific economies that fully control their execution environments while anchoring to Ethereum for trust and interoperability.
Just like McDonald's… Global McDonald's locations maintain a unified identity but operate locally. The McDonald's in Rome adopts a black-gold aesthetic to match ancient architecture; the McDonald's in India offers spicy cheese wraps; in France, you can enjoy espresso and macarons.
Similarly:
✅ DeFi Rollup: Completely eliminates gas fees + high-frequency trading optimization
✅ Gaming Rollup: Uses WASM for real-time logic and user experience abstraction
✅ Social Rollup: Focuses on throughput, on-chain messaging, and identity
These are the "McRollups" — adhering to Ethereum's standards, settling back to Ethereum's base layer, and interoperating through shared protocols.
Technical Insight: The Application Boundaries of zkTLS Go Beyond "Resume Verification"
Rollup as a Product
Operating a Rollup ≠ Deploying smart contracts — it essentially resembles launching a company, or more accurately, a full-stack SaaS platform:
✅ Manage Uptime: Sorters, data availability (DA), proofs, node activity
✅ Recruit Developers: Build SDKs, write documentation, establish ecosystem funds
✅ Support Users: Wallets, block explorers, support processes, fiat deposit channels
✅ Control the Economy: Gas tokens, cross-chain bridge fees, MEV fees, governance mechanisms
The most successful Rollup teams will view it as a business — a vertically integrated entity (storefront + backend + distribution channels + monetization engine) that is composable but optimized for users.
The Power of Shared Infrastructure
The autonomy of Rollups relies on the synergy of the Ethereum ecosystem:
✅ Standardized cross-chain bridges → Interoperability standardization
✅ Shared sorting layers (e.g., Superchain, AggLayer, Espresso) → Atomic-level cross-chain interactions
✅ DA networks (e.g., EigenDA, Celestia) → Cost reduction while maintaining Ethereum consistency
✅ Unified toolchain → Developers do not need to start from scratch
This achieves a seamless user experience — if synchronous composability is realized, accounts, assets, and identities can transfer across Rollups as if within a single chain.
Synchronous Composability: A Strategic Imperative for Ethereum
If Rollups are franchise stores, then synchronous composability is the logistics, coordination, and communication network that transforms them from isolated branches into a unified global value chain. Without it, Rollups, while powerful, would become fragmented; with it, they will become a tightly connected, interoperable network of programmable economies.
What is Synchronous Composability?
Synchronous composability allows smart contracts on different Rollups to interact within a single transaction context — in an atomic and deterministic manner. Simply put:
✅ Rollup A contracts can call Rollup B contracts and return results instantly
✅ Users can perform cross-chain operations as if on a single chain
✅ Developers do not need to design asynchronous bridges
It transforms Rollups into modular components of a unified system, rather than isolated chains stitched together by cross-chain bridges.
Without Synchronous Composability
❌ Rollups become economic islands
❌ Liquidity fragmentation
❌ Users face cumbersome cross-chain operations
❌ Developers are forced to adopt asynchronous processes
❌ dApps lose atomic logic
This could undermine Ethereum's superpower: seamless composability.
With Synchronous Composability
✅ Contracts interact instantly across Rollups
✅ Cross-domain flash loans/DAOs become simple
✅ Liquidity flows freely
✅ Users experience seamless cross-domain operations
✅ Ethereum resembles a multi-style single chain
Synchronous composability not only improves the experience but also unlocks entirely new types of decentralized applications that would otherwise be impossible.
How Synchronous Composability Works (Underlying Mechanisms)
See in-depth technical specifications: https://medium.com/@alonmuroch-65570/enabling-cross-chain-synchronous-and-atomic-messages-for-the-op-stack-eaa4e58c1d92
✅ Shared Coordination Network: Deterministically orders transactions across multiple Rollups (e.g., Optimism Superchain, Espresso, Astria)
✅ Shared Data Availability Layer: Rollups publish and consume data from a common source, ensuring visibility across all chains (e.g., EigenDA, Celestia)
✅ Standardized Messaging Layer: Supports atomic, secure, and verifiable cross-chain messaging
✅ Ethereum Settlement: All Rollups ultimately settle to Ethereum, where finality, data validity, and dispute resolution converge
These components collectively create a unified execution context among autonomous Rollups.
Real-World Use Cases
✅ DeFi Arbitrage: Rollup A borrows → Rollup B trades → Repayment (completed in a single transaction)
✅ Cross-Rollup NFT: Chain A mints → Chain B game → Chain C trades (completed instantly)
✅ Cross-Domain DAO: Proposals/executions span multiple Rollups (treasury operations + governance logic)
✅ Unified Entry: Users experience seamless cross-chain interactions
The Danger of Lacking Synchronous Composability: Rollup Centrifugal Risk
As Rollups grow in user base, capital, and brand influence, their motivation to remain aligned with Ethereum will weaken unless Ethereum provides the infrastructure to keep them composable.
Rollup Escape Trajectory
Without synchronous composability, Ethereum may lose the Rollups it helped launch. As these Rollups mature — accumulating users, liquidity, and developer attention — they become increasingly self-sufficient. Their reliance on Ethereum's base layer diminishes.
To some extent, the following logic may become compelling:
“If we cannot benefit from shared liquidity or shared execution, why continue to pay the cost of Ethereum finality?”
This is the escape path. As more Rollups reach this threshold, they may:
✅ Build their own full-stack solutions (sorters/DA/cross-chain bridges)
✅ Anchor to alternative settlement layers
✅ Prioritize vertical integration
With each Rollup that exits, Ethereum's network effect weakens. Without composability, Ethereum will no longer be the connective organization of Web3 but may devolve into another Layer 1, while Rollups evolve into cloud platforms — autonomous, isolated, and increasingly indifferent to Ethereum's future.
Synchronous Composability = Ethereum's Economic Defense Layer
The core of Ethereum retaining Rollups is providing irreplaceable synergistic value:
✅ Shared liquidity → Stronger markets
✅ Shared user experience → Higher retention
✅ Shared infrastructure → Faster development
✅ Shared state → Deeper integration
This is akin to the network effects of Web2: the stronger the composability of Rollups, the more attractive the entire ecosystem becomes.
In Conclusion
Ethereum Rollups are not just Layer 2. They are economic zones of franchising, where founders become platform operators, and users become citizens of autonomous and interconnected digital nations. They:
✅ Logically possess autonomy
✅ Are customizable in user experience
✅ Achieve monetization in sorting and infrastructure
✅ Maintain alignment through Ethereum's finality and values
This is not just "your app, your chain," but rather, on the track based on Ethereum, it is your chain, market, and economy.
Welcome to the era of McRollups.
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