#DataAvailability

Rollups solved Ethereum’s scalability problem — but created a new one: where do we store all that data?

Enter Data Availability (DA) layers — like Celestia, EigenDA, and Avail.

These networks don't run smart contracts.

They exist only to ensure rollups can publish their data cheaply, securely, and independently.

Here’s why DA matters:

🔹 Without DA, rollups are vulnerable to censorship and data withholding

🔹 With DA, users can verify everything — even without trusting sequencers

🔹 It enables true decentralization, not just cheap transactions

Most people think rollups = scalability.

But in reality, DA = trust.

And without trust, blockchains are just databases.