Product design question

Google recently developed a technology that can detect human emotions in a 2 X 2 dimension (energy level and body movement). What are some of the products you can build using that technology? List a few ideas, then choose one and design the product for that idea.

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

Tests creative ideation grounded in a real technical capability, then structured product design for the chosen idea.

Brainstorm ideas broadly first: fitness coaching (detect low energy/movement to suggest breaks), mental wellness check-ins (detect low energy over time as a burnout signal), retail window displays reacting to shopper mood, and classroom engagement monitoring for teachers.
Choose one to design in depth, workplace wellness (detecting sustained low energy/low movement as a burnout risk signal for remote workers), since it has clear, defensible user value.
Define the target user: remote knowledge workers and their employers' wellness programs, opted in voluntarily given the sensitivity of emotion data.
Design the core loop: passive background detection via webcam (with explicit consent), weekly personal trend reports, and optional anonymized aggregate reporting to HR, never individual data shared without consent.
Define success: user-reported usefulness of insights and voluntary opt-in retention rate, since a privacy-sensitive product's real test is whether people trust and keep using it.

Generates several genuinely distinct ideas across different domains before committing to one, showing real ideation breadth.
Picks an idea with clear ethical and consent-based design from the start, appropriate for emotion-detection technology's real risks.
Explicitly designs privacy safeguards (opt-in, anonymized aggregation) into the core product rather than as an afterthought.
Picks trust and voluntary retention as success metrics, recognizing this category lives or dies on user comfort, not raw engagement.

Jumping to one idea immediately without demonstrating real breadth of ideation first.
Designing an emotion-detection product without addressing consent, privacy, and potential for misuse upfront.

How would you prevent this technology from being used for covert surveillance instead of consented wellness support?
How would you validate the underlying detection technology is accurate enough to trust before shipping?