CONCEPT
The Gulf of Execution
Norman's name for the distance between what a person wants to do and what a system allows her to do — the chasm the AI interface has, for the first time in tool history, crossed from the machine's side.
The Gulf of Execution is the first of Norman's two foundational chasms in human-tool interaction. It separates the person's intention from the actions the system requires to realize that intention. Every frustrating encounter with technology — the door pushed when it should have been pulled, the wrong burner turned on, the command-line syntax forgotten — traces to an unbridged Gulf of Execution. For four decades of interface design, the burden of crossing this gulf fell on the person: she had to learn the system's vocabulary, memorize its syntax, translate her goals into its language. The AI era has inverted this arrangement. Natural language interfaces mean the machine now crosses the gulf on the person's behalf, absorbing the translation cost that every previous interface externalized onto the user.
In The You On AI Field Guide
Norman developed the Gulf of Execution concept through decades of observing people fail at tasks that should