Scaling at the data layer and “layer zero”

April 12, 2022, 12:30PM EDT

• 13 min read

Quick Take

  • Scalability is hard for decentralized blockchains because numerous confirmations by a large network of nodes are both computationally intensive and time-consuming
  • Per the scalability trilemma, blockchains that keep to “simple” techniques almost inevitably have to sacrifice either decentralization or security to preserve scalability
  • Here, we dive into advanced techniques at the data layer, including block expansions, segregated witness (SegWit), and directed acyclic graphs (DAGs) that try to increase scalability while preserving decentralization and security
  • We also cover “Layer 0” scaling strategies that try to accelerate block propagation by improving the communication protocol for any blockchain network

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