Ethereum core developer Marius Van Der Wijden has responded to Vitalik Buterin's proposal to increase block capacity by highlighting additional risks and recommending a cautious approach—advising to wait until after the EIP-4844 upgrade is fully implemented.
Vitalik’s Proposal to Expand Block Capacity
During a Reddit AMA hosted by the Ethereum Foundation, co-founder Vitalik Buterin suggested raising Ethereum’s current Gas Limit from 30 million to 40 million—a 33% increase—to enhance network throughput. Vitalik noted that this parameter hasn’t been adjusted in three years, making the change timely.
👉 Read Vitalik’s full AMA discussion here
Key Concepts
Gas Limit Explained
The Gas Limit determines how many transactions a block can process. Increasing it expands block space, allowing higher throughput or more complex transactions. Historically, the Gas Limit has grown alongside network demand, as seen in Ethereum’s gas usage trends.
Node Data Storage
Blockchain nodes store two data types:
- State Data: Current network snapshots (e.g., account balances, smart contract states).
- History Data: Past transactions and blockchain activity.
State data ensures consensus and operational efficiency, while history data maintains security and auditability.
Risks of Raising Gas Limit
1. State Data Bloat
- Ethereum’s state size grows ~2GB/month, reaching 207GB in five years if unchecked.
- Larger states slow down access speeds, impacting virtual machine performance.
- Unlike history data, state data cannot be pruned, leading to irreversible "state explosion."
2. History Data Growth
- Full-node storage surpassed 900GB in 2024, up from 350GB in 2021.
- Rollups exacerbate this via calldata storage, which grew 9GB/month pre-EIP-4844.
3. Longer Node Sync Times
Higher Gas Limits prolong:
- Full synchronization (weeks for Geth).
- State/history data downloads.
- Snap healing processes.
4. Client Centralization Risks
- Harder for new execution-layer clients (e.g., EthereumJS) to keep up.
- Over-reliance on C-KZG libraries reduces language diversity.
Other Considerations
- Attack vectors (e.g., disk I/O overload) could destabilize nodes.
- Larger proofs may hinder light-client cross-verification.
Potential Solutions?
Short-Term Fixes
- EIP-4844’s blobs will reduce calldata reliance.
- EIP-4444 introduces data expiry for history pruning.
Long-Term Goals
- State regeneration (regenesis) research is ongoing.
- Community involvement is encouraged to tackle state bloat.
Current Recommendations
- Delay Gas Limit increases until post-EIP-4844.
- Reprice calldata to incentivize blob adoption.
- Monitor network stability before further adjustments.
FAQs
Q: Why not raise Gas Limits now?
A: It risks node centralization, sync delays, and unchecked state growth. EIP-4844 offers safer scalability.
Q: How does EIP-4844 help?
A: Blobs replace calldata, reducing history growth while enabling cheaper Layer2 storage.
Q: What’s the biggest challenge with state bloat?
A: No efficient pruning method exists yet—state data must remain fully accessible for consensus.
👉 Explore Ethereum’s scalability roadmap
Risk Disclosure: Cryptocurrency investments carry high volatility and risk. Capital loss is possible. Assess risks carefully.
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