What is Optimism?Optimism L2 is an effective Ethereum scaling solution that allows users to run Ethereum transactions at a significantly lower cost. Optimism uses a special mechanism that merges multiple transactions into a single transaction to utilize optimistic roll-ups. And later push that transaction to another blockchain for further processing and then issues the receipts of the transaction back to Ethereum. Learn more about Optimism from here.AirdropOptimism airdrop round 1 was success...