Odaily Planet Daily News: Superposition, a DeFi native L3 project based on Arbitrum One, announced on X that it has launched its testnet incentive activities on Intract. Users can bridge from Arbitrum Sepolia to Superposition L3, earn points and improve rankings by participating in daily tasks, exchange, trade and provide liquidity. Earlier news, Superposition launched the first phase of the testnet. The project uses the Arbitrum Orbit technology stack and Stylus to provide a low-cost and fast DeFi experience. Its first DApp on the chain is Longtail, an Arbitrum ecosystem V3 AMM that follows the centralized liquidity model launched by Uniswap.