AO the computer Explained to Ethereum ppl

AO, described as a computer built by Arweave, is presented as a sovereign rollup that uses Arweave as its data availability layer, made up of an arbitrary number of processes that each roughly equate to a rollup, with initial support for WASM containers. The article names three staked node types: Message units (MUs) relay messages between users and scheduling units, Scheduling units (SUs) act as lazy sequencers that set process ordering, and Compute units (CUs) conduct and attest to computation. It states that AO uses fraud proofs and slashing for cryptoeconomic security and promises configurable economic security per process. The author notes that where fraud proof challenges and settlement occur, given Arweave does not support execution, is not answered in the whitepaper.