An Optimistic Layer is a solution designed to improve the scalability and efficiency of blockchain networks. It allows for faster transactions by processing them off-chain, meaning they occur outside the main blockchain but still maintain the overall security.Transactions in an Optimistic Layer are assumed to be valid by default. This “optimistic” approach speeds up the process since there is no immediate verification. Users submit transactions, and if no one disputes them within a specified period, they are finalized and added to the main chain.However, to prevent fraud, these layers incorporate mechanisms for dispute resolution. If someone believes a transaction is incorrect, they can challenge it. This process ensures that only legitimate transactions are ultimately confirmed, balancing speed and security.By offloading some of the transaction burden from the main blockchain, Optimistic Layers help to address congestion and high fees, making the system more efficient for users.