[Vitalik: The Difference Between State and Data Lies in Editing Capability] Foresight News reports that Vitalik Buterin responded to a user's viewpoint that 'state itself is data, and the format of state can support structures without requiring complete state,' stating, 'The difference between them lies in editing capability: simple (only supports append), medium (linear list, can modify its own value in place), complex (key-value storage, each user needs the ability to create new values at any position).'