Product design question

Design a portal that can instantly transport people from any part of the world to another.

Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.

What this question tests

Creative, unconstrained product sense: applying structured product thinking, user, problem, prioritization, even to a fantastical premise.

Treat it like any product question: define who benefits most first, for example long distance commuters or families separated by distance.
Identify the core pain point solved, eliminating travel time and cost, and confirm assumptions about physical or safety constraints with the interviewer.
Prioritize a narrow first use case, such as portals between two fixed high demand city pairs, rather than global instant travel.
Address practical constraints even in a hypothetical, like capacity limits, safety checks, and access pricing.
Define a success metric, such as trips completed per portal per day or reduction in travel time for the target route.

Grounds a fantastical premise in real product discipline, picking a specific user and narrow first use case instead of describing the technology.
Explicitly confirms assumptions with the interviewer, like whether the portal is physically instant or still time limited, showing good clarifying instinct.
Considers real world constraints like capacity and safety, since even a novel product needs guardrails.

Getting lost in the technology's mechanics instead of applying standard product thinking.
Skipping user prioritization and describing a global, unconstrained rollout from day one.

Chapters of the AI PM course that teach what this question tests.