Ismael Celis's name for the mental split web developers typically make between synchronous web-controller commands (quick DB reads/writes, redirect, easy error rendering) and asynchronous background-job commands (retriable, delayed, with awkward error handling, UI-update strategies like WebSockets or polling). Conceptually they're both just commands in a workflow; the toolkits and APIs we use force wildly different implementations and expectations. His proposed remedy (realised in Cidurial): a single command-handler abstraction, dispatched through a runtime, that feeds the UI uniformly regardless of how long a step takes.