While several layer 2 scaling solutions have provided speedier and more cost-efficient Ethereum transactions, layer 3 solutions will serve to provide “customized functionality” to the network, says Vitalik Buterin.
While Ethereum-based layer-2 solutions have been focused on hyperscaling the network, Ethereum co-founder Vitalik Buterin believes layer 3s will serve a far different purpose — providing “customized functionality.”providing three “visions” of what layer 3s will be used for in the future.
“A three-layer scaling architecture that consists of stacking the same scaling scheme on top of itself generally does not work well. Rollups on top of rollups, where the two layers of rollups use the same technology, certainly do not.” One of layer 3’s use cases would be what Buterin describes as “customized functionality” — referencing privacy-based applications which would utilize ZK proofs to submit privacy-preserving transactions to layer 2.