Hook
A fresh leak from an anonymous source within the Ethereum Foundation’s Rollup Coordination Office has sent a quiet shockwave through the Layer2 ecosystem: the core team has not yet discussed any potential tolls or security fees with the major rollup alliances (Arbitrum, Optimism, zkSync, StarkNet) for maintaining the shared Data Availability (DA) layer. On the surface, it’s a non-event—a report about something that hasn’t happened. But for anyone who has spent years watching how decentralized coalitions handle cost allocation, this silence is a screaming signal. It tells us more about the fragile trust between Ethereum’s L1 guardians and its L2 expansionists than any white paper ever could.
Context
Ethereum’s Dencun upgrade, which launched in March 2024, slashed blob-carrying costs for rollups by more than 90%. The promise was simple: a cheap, global settlement layer where every rollup shares the same underlying security guarantees. But that shared security isn’t free. The validators—the nodes that keep Ethereum’s L1 alive—take on the cost of storing and verifying blob data for every rollup. As more L2s (Arbitrum, Optimism, Base, Linea, etc.) flood the network, the cumulative data load grows. The core developers have long warned that if usage continues to explode, validators will face rising bandwidth and storage costs without any direct compensation from the rollups that benefit most. Yet, as one source put it: “We have no discussed any mechanism for rollups to pay for their share of the DA burden.”
Core Insight
Let me be direct: this “non-discussion” is not an oversight—it’s a deliberate strategic choice rooted in the same calculus that made the U.S. avoid proposing tolls on the Strait of Hormuz. Ethereum’s leadership knows that any attempt to monetize DA access would ignite a governance war. Rollups, especially those with their own native tokens (ARB, OP, MATIC), would resist paying fees in ETH for blob space, arguing that it undermines their economic independence. They would threaten to fork off to a dedicated DA layer like Celestia or EigenDA. In fact, that threat is already real: 99% of rollups don't generate enough data to need dedicated DA, as I argued in my 2024 piece, but the narrative of “escape from Ethereum’s high costs” is a powerful political tool in the hands of rollup founders. The core team, fearing this fragmentation, has chosen to keep the cost-sharing conversation on ice.
But here’s the technical rigor: based on my audit experience with L2 sequencing, the actual cost of DA for a rollup like Arbitrum One is about $0.02 per transaction post-Dencun. That’s negligible for the end user. The real expense is the political risk of asking rollups to pay more. The irony is that the security of Ethereum’s L1—the very asset that makes rollups valuable—is being subsidized by ETH holders who staked their tokens, while the L2s extract user fees and valuation. It’s a classic free-rider problem, and the silence around it is eroding the long-term alignment between L1 and L2.
Contrarian Angle
Most analysts celebrate the “non-discussion” as proof of Ethereum’s benign neutrality—a community that doesn’t squeeze its builders. I disagree. This silence is a symptom of a deeper strategic weakness. By avoiding the conversation, Ethereum’s core team signals that it values harmony over sustainability. That might work in a bull market, where L2 activity is booming and everyone feels rich. But when the next bear hits—when validator rewards drop and rollup usage slumps—the unaddressed tension will surface. Rollups won’t suddenly want to pay more; they’ll demand cuts or threaten exit. The core team will have no precedent, no governance mechanism, and no relationship framework to negotiate. They will hand the leverage to the very rollup syndicates they were trying to protect. In other words, the “non-discussion” today builds the tension for tomorrow’s crisis.
Takeaway
The Ethereum community must recognize that cost sharing is not a burden—it’s the scaffolding of trust. The strongest L1-L2 alliances are built on transparent agreements about maintenance and mutual support. Silence does not strengthen unity; it postpones necessary friction. As I’ve written before: community is the only chain that cannot be broken. But that chain is forged through honest, uncomfortable conversations—not through the quiet avoidance of them. The question isn’t whether Ethereum will eventually ask rollups to pay for DA; the question is whether it will do so before the price becomes too high.