Not sure I have ever been as productive in my life as in the last ~10 weeks: An extremely challenging yet worthwhile goal. The crazy progress of AI coding and heavy use of it. A very small team, world-class skills, and now the ability to multiply output thanks to AI. The result is @etheconomiczone — with a live devnet already: eez.dev. What is this? It will be: a) A new rollup that is fully composable with Ethereum. This means you can do either cheap transactions on this chain that only interact with contracts on this rollup, or more expensive transactions (similar to L1 costs) that can interact in a fully composable way between L1 and L2. So, for example, if you trade on this rollup, the routing can dynamically decide to use only L2 liquidity for a small trade, or for a larger trade — where the extra gas costs are worth it — to use both L2 and L1 liquidity. b) A whole framework that will allow new rollups, as well as existing L2s and sidechains (yes @gnosischain!!) to integrate into this “(Ethereum) economic zone.” Imagine: one could make a trade today simultaneously using Ethereum liquidity, but also Arbitrum, Base, or all the other L2s. This is what EEZ will allow. Now, let’s talk about the tech: Essentially, there are two core concepts that make all of this possible: 1) Proxy contracts 2) Real-time proving 1) Proxy contracts are basically a way to overcome the challenge that ~99% of all contracts are written in a way that only deals with addresses from a single chain. For example, a token or an NFT can be sent to an address, but not to an address on a specific other chain. Proxy contracts fix this. An address “A” on chain “n” will get a deterministic proxy representation, “A*”, on all other chains. So now, if, for example, A is a DAO on Ethereum and it should control, say, a fee switch in contract D (a DEX) on another chain, this can easily be done by setting A* as the owner of D. A (the DAO), on the other hand, can now call D* (the proxy representation of the DEX contract D) on Ethereum. All the cross-chain message passing in between is abstracted away — the contracts just call another contract and do not realize it is actually on another chain. 2) Real-time proving The proxy design already addresses the problem that there is no widely supported cross-chain message-passing standard in EVM land. So it alone would already be helpful for asynchronous calls, or better, calls that do not expect or require a return value. However, this would still not quite bring us to “synchronous composability.” Imagine a DEX trade: you do the first part of the trade on L1 and the second part on L2. You want to know the result of the second part — and if it did not get you the expected amount, you want to be able to revert the first part. This requires the call that triggers the DEX trade on L2 to have a return value. This was long assumed to be impossible - but with real-time proving, it no longer is. Basically, because Ethereum blocks are only produced every 12 seconds (and this would still work with, say, 6 seconds), that is now long enough to build and prove the L2 block that contains, for example, this L1→L2 DEX trade. If you want to learn more, don’t miss the talk by @tw_tter and @jbaylina on Tuesday at @EthCC! Let’s make Ethereum ONE again!