What is sui? Diem, a Meta Corporation, served as the foundation for the Sui blockchain. Sui uses a modified version of the Move programming language to give developers a better experience and take advantage of the parallelism features of Sui. Sui is a high-performing Layer 1 blockchain developed by Mysten Labs to finally end scalability issues. It uses a customized version of the Move programming language to reflect its scalable design and improve the developers’ experience. Imagine them being physical coins in your wallet. In the Sui network, tokens are first-class citizens in the form of objects. Therefore, when a user sends Sui tokens, the network only needs to see how many tokens the user has in its address. On traditional blockchains, the network needs to see the entire state of the network. In other blockchains, tokens are simply a number inside a smart contract. If their histories do not overlap, transactions with them can be executed in any order or concurrently. On the Sui blockchain, every object has a causal history that goes back to its creation. Sui uses this feature to run groups of transactions concurrently without the risk of double spending.