USD1 is now live on AB Chain, starting to build out the 'stablecoin infrastructure.' Stablecoins are always the first major milestone for a public chain to scale up: As long as a stablecoin can truly take off, the foundational layers like lending, contracts, cross-chain bridges, and payments can start stacking on top. Of course, it’s still very early days. The key will be USD1’s actual circulation, real-world use cases, and whether the AB ecosystem can fill in the 'usage scenarios' down the line. Otherwise, deployment is just deployment—liquidity is the soul.