Cardano's $Hydra processed $2 billion in transactions in just 4 hours, surpassing the capabilities of Visa. This milestone event was reported by the Financial Index and shared by Cardano founder Charles Hoskinson on social media. $Hydra achieves off-chain transaction processing through a parallel "head" network, addressing the scalability issues of blockchain networks while reducing latency and transaction costs, all while maintaining Cardano's security standards. The infrastructure of $Hydra includes 12,000 heads deployed across six regions globally, with each head capable of processing 800 transactions per second. Additionally, $Hydra's architecture allows for zero transaction fees, presenting a significant cost advantage within the blockchain ecosystem. The Cardano ecosystem is also continuously evolving, with the development of the Cardano Constitution aimed at granting the community greater control over the network. Meanwhile, global search interest in Cardano has surged by 38% on Google Trends since early November.