 is the first modular blockchain's data availability (DA) and consensus layer, allowing other chains to scale data availability and instead focus on execution.

Think of Celestia as decentralized AWS for blockchain's data availability (DA). Celestia scales DA for other chains and allows all the L1s and L2s to rely on Celestia for data availability in a trustless manner resulting in more throughput. 

https://twitter.com/ercwl/status/1486260092953673729?s=20&t=PLkLwW1-CI9b0pKG5zR7NA

How does Celestia fit in the multichain world of L1s and L2s? 

The problem with L2s solutions like Optimistism, ZKsync, or Starknet is that they still rely on Ethereum for data availability, which is currently expensive and explains why gas is still expensive on L2s.

Instead, future L2s solutions can deploy a Validium and make TXs data available using Celestia or other DA solutions, resulting in cheaper gas fees. 

https://twitter.com/epolynya/status/1469532719956647936?s=21%E2%80%A6

Celestia can also provide data availability to ZK-L1 chains like 

, which has a limited block size and is a significant hurdle for adoption. For example, MINA can rollup on Celestia, generate proof off-chain, and verify it on-chain.

https://twitter.com/epolynya/status/1477143588743958530?s=21%E2%80%A6

What makes Celestia unique is probably its focus on UX, ease of integration, and fast delivery. Celestia is already live on devnet Celestia Labs is working on CEVMOS ( the EVM chain on Cosmos, leveraging Celestia for the DA layer ). Cosmos as you know has gained some popularity recently due to dydx migrating to Cosmos.

When CEVMOS launches, Celestia will likely gain significant DA shares of adoption by new chains on the Cosmos ecosystem as more chains are built. Lindy effect certainly applies here, so there are benefits to being early. 

https://twitter.com/ercwl/status/1486260092953673729?s=20&t=gM5CcmTWgv2DmbBEt2aIVg