Optimism blockchain is also one of these second layer projects that uses the technology of "Optimistic Stacking Method".
In this method, the data of several transactions are combined and sent to Ethereum in the form of a package. Because of this, working with Optimism is much cheaper than Ethereum, and this has also increased its popularity.
This blockchain has also released its own native digital currency, which is known by the symbol OP

Don't sell your friend's hair to the world

This network has become one of the most economical networks with a very cheap and good fee  🎭