Barry: Dymension – Modular Blockchains and RollApps

When it comes to scaling blockchains, there are 2 main types of off-chain solutions: sidechains and L2s (i.e. rollups, state channels). These are all intended to scale monolithic L1 blockchains. However, the core functional layers of a blockchain could also be reinvisioned as customisable building blocks. This idea led to the creation of modular blockchains, which handle execution, consensus and data availability separately from one another, thus considerably increasing throughput.Dymension is a Cosmos modular blockchain hub that acts as settlement layer for RollApps (app-specific chains).Sebastien was joined by Barry, Head of Product at Dymension, to discuss the advantages of developing modular blockchains, their scalability and how RollApps integrate in this environment.Topics covered in this episode:Barry’s backgroundThe evolution of scaling solutions & Dymension’s RollAppsThe nuances of different types of rollups (L1 vs. L2, Ethereum vs. Cosmos)The scalability trilemma and modular blockchainsCosmos’ ICS scalingThe architecture of Dymension and its RDKHow RollApps choose the data availability layerRollApp interoperabilityIncentivising sequencer neutralityNetwork roles in Dymension and differences between SDK & RDKUse cases & limitations of RollAppsFuture roadmapEpisode links: Barry on TwitterDymension on TwitterDymension's websiteThe Interop Podcast on TwitterCelestia on TwitterThis episode is hosted by Sebastien Couture. Show notes and listening options: epicenter.tv/489