The thesis that Layer-2 networks would function as seamless extensions of Ethereum is under serious pressure. As Ethereum's L1 has scaled its own throughput — fees are low, gas limits keep climbing — many rollups have defaulted to operating as independent chains connected to Ethereum via multisig bridges rather than as trustless execution shards. Vitalik Buterin put it bluntly: "If you're building an EVM at 10,000 TPS where the connection to L1 is mediated by a multisig bridge, you are not scaling Ethereum."
The TVL data makes the structural problem hard to ignore. Arbitrum shed 62.9% of its liquidity, zkSync dropped 64%, and Linea collapsed 97.7% — from $1.53B to just $35M. Base and Optimism fared better in relative terms but still posted double-digit declines. The pattern is consistent: capital that flowed in on incentive programs is rotating out as those programs wind down.
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