Ok, we are all very excited by the recent introduction of Smart Optimistic Rollups in #tezos. But do we really understand what they do and why we need them? Yesterday i spent some time reading about them and i thought it would be good to summarize what i learned in a thread. Why are they called Smart Optimistic Rollups?
They are Smart because they are like smart contracts. They are programs that interact with the blockchain. They can receive inputs (messages) from the tezos blockchain and return outputs that could be executed in the main chain.