Possible support of L1SLOAD (RIP-7728)?

[0xurb]

Are you interested in RIP-7728 support? I find this one perspective.
https://github.com/0xurb/l1sload - example implementation on revm (release/v45).
When optimism flow will be finished, we can do more exciting precompiles, that use state and L1 context.

Risks and open questions:

Can we require L2 nodes to rely on L1 archive nodes?

• TBD

How to deal with RPC errors?

• TBD

Impact of RPC latency on sequencing? How do we price this in gas?

• some latency (tentative) cost for used gas calculation is included per slot

Can we guarantee that the accessed L1 state is recent?

• TBD

Should we allow state reads at arbitrary L1 block height?

• state has an access through L1Block.sol. And if EVM context storage is returns error, we can take BlockId::Latest on RPC calls.

[onbjerg]

Yeah, it's definitely something we're interested in exploring:)