Privacy on L2 is starting to feel less like a “nice to have” and more like the whole ballgame. Builder’s Block #006 from the Arbitrum Foundation basically turned Devconnect into a preview of what @arbitrum looks like when privacy, AI and interop actually ship. I went through the post and scrubbed the ArbiVerse agenda + ecosystem highlights and a few things really stood out: ❯ Curvy v2 using zk stealth aggregation for private fund splits on Arbitrum real stealth addresses, not just “hidden balances” marketing. ❯ Symphony making x402 payments actually cross-chain, with Arbitrum as a live leg in the demo that’s machine-to-machine payments becoming real infra, not a blog buzzword. ❯ Allora Network landing on Arbitrum to feed dApps onchain ML predictions – think AI oracles and adaptive markets wired straight into an L2. Underneath the shiny stuff there’s also Ed Felten’s multi-constraint pricing model creeping into the DAO forum, which is quietly the most “this might age well” part of the whole update flexible gas economics for a world of many chains and shared sequencers. Arbitrum If you’re building, I’d honestly pick one of: Curvy, x402, or Allora, and prototype a tiny feature this week on @arbitrum. The narrative is “Arbitrum Everywhere,” but the real edge is going to be: who actually ships private, cross-chain, AI-aware flows first