Thread by @epolynya

There's a real usecase for sovereign L1 chains with their own consensus & data availability. Rollups or their primitive predecessors shards/parachains & multi-chain/subnets do not accomplish this.

The answer: a validity proven execution layer(s) with a DAS proven DA layer.

There are multiple ways to accomplish this. Start with Mina and fork Polygon Avail or Celestia. I bet Polygon's next-gen SDKs will look like this - Polygon's ZKRs + Polygon Avail sharing a consensus mechanism.

The great advantage of validity proofs is they can be verified on...

...a different settlement layer. So even if the above is an alt-L1, Ethereum can verify it's full state. As long as this sovereign chain isn't compromised, it basically behaves like a ZKR. To be clear, rollups are superior: their bridges will continue working even if compromised!

But I acknowledge there are cases where you'd want sovereignty - and the far superior approach, as always, is modularity.

Rollups are the finest evolution of blockchain tech, but validity proven, DAS proven L1s are also necessary to obliterate monolothic L1s.

#Endgame

Put it simply: crippling showstopper with a multi-L1 paradigm has been insecure bridging and fragmented liquidity. Rollups fix this. But validity proven L1s & ZKP-bridges also improve the situation dramatically. @nil_foundation is doing groundbreaking work on this front.