Synthetic users (panels, interviews under pressure, walkthroughs) Before a real user has been interviewed, and again when a prototype or a build exists, this skill puts a panel of personas in front of the product and reports what survives repetition. It samples personas from the material the repository already holds, interviews them about what they did last time and under the pressures the brief describes, walks a named flow through their eyes, runs the whole thing more than once with a fresh panel, and reports only what repeats — barriers, missing cases, contradictions, and the list of what…