Ethereum entered the market this year with a growing debate over its future, as early optimism around institutional adoption gave way to renewed concern about scaling, security, and the role of layer-2 networks.
Builders and executives had expected another growth phase. This time, they saw technology firms and neobanks as the likely drivers. In that view, users would not need to manage wallets or gas fees.
Instead, Ethereum would work quietly beneath the surface. Applications would handle the interface, while the network powered a new financial stack in the background. That idea extended a long-running belief that Ethereum could succeed by becoming less visible to end users.
The conversation changed within weeks. Attention moved away from user abstraction and back to the network’s core roadmap. That shift opened a deeper question: what is Ethereum actually trying to become?
Before 2026, many in the ecosystem believed Ethereum stood near another period of expansion. The expected growth would come not from crypto-native users, but from institutions and technology platforms.
Neobanks played a central role in that view. Supporters argued that these firms could onboard millions of users by hiding technical friction. Wallet management and transaction fees would stay out of sight.
That argument rested on years of upgrades aimed at lowering costs and improving usability. The Dencun upgrade introduced proto-danksharding, which expanded data availability for transactions and reduced fees on layer-2 networks.
At the same time, ongoing base layer improvements made transactions more efficient. While Ethereum price remained subject to market forces, the technical direction pushed ETH closer to an app-based model where infrastructure remained largely invisible.
Even so, the early months of 2026 changed the tone. The focus moved from seamless user experience to the deeper structure supporting that experience.
Earlier this year, Ethereum co-founder Vitalik Buterin delivered a direct message to the ecosystem: “You are not scaling Ethereum.”
The comment landed at a time when rollups had drawn broad praise. Layer-2 networks had expanded fast, fees had fallen, and activity had spread across the ecosystem.
Still, Buterin argued that the real issue was not just growth in usage. He warned that many layer-2 designs were moving away from Ethereum’s core model. In his view, these networks relied too heavily on centralized components and siloed environments. As a result, they did not fully inherit the guarantees of the base chain.
That concern went beyond temporary trade-offs. Fragmentation across layer-2 networks, uneven security assumptions, and isolated environments began to look more structural.
Ethereum faced a risk in that model. As it scaled outward, it could weaken the security, decentralization, and shared settlement role that gave the network its value.
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Layer-2 teams did not reject the criticism outright. Instead, some began to refine their position and lean into specialization. Some networks framed their future around privacy, consumer applications, or distinct execution environments. Others defended high-throughput systems as a necessary part of Ethereum’s broader scaling path.
Meanwhile, Ethereum’s base layer kept advancing. December’s Fusaka hard fork increased data capacity and improved efficiency on the main network. That allowed more transactions and lowered costs. Still, recent transaction spikes drew scrutiny. Some critics linked part of that activity to “address poisoning” scams, which raised new questions about the quality of network usage.
The episode made one point clearer. Ethereum’s path forward may depend on balancing base layer upgrades with a smaller group of rollups that expand the ecosystem without weakening its foundations.
That possibility may also reshape the layer-2 market. In a research report, 21Shares said 2026 could bring consolidation, producing a leaner group of ETH-aligned, exchange-backed, and high-performance networks.
Ethereum is facing deeper questions about its future as debate over layer-2 networks intensified. Vitalik Buterin’s warning pushed attention back to ETH scaling, base layer upgrades, and the need to balance growth with security, interoperability, and decentralization across the network.