Product design question
How would you build Facebook for the blind?
- Meta
- Product design
- Hard
Practice this question out loud. An AI interviewer asks it, follows up like a real interviewer would, and scores your answer. Type or speak.
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What this question tests
Inclusive design thinking: can you go beyond basic screen-reader compliance to design a genuinely usable experience for blind users on a highly visual platform.
How to approach it
- Define the user: blind or low-vision users relying on screen readers (like VoiceOver/TalkBack) to navigate a primarily visual, photo/video-driven platform.
- Identify the core gap: most content (photos, videos, memes) has no meaningful audio description, making the feed largely inaccessible even with a screen reader technically working.
- Propose the core feature: AI-generated alt text/image descriptions for photos, and audio descriptions or captions for videos, surfaced automatically.
- Address navigation: ensure interactive elements (like, comment, share) have clear, consistent screen-reader labels and logical tab order, not just visual layout.
- Consider input: voice-based posting and commenting to reduce reliance on visual text entry and review.
- Define success: task completion rate for core actions (posting, commenting, navigating feed) measured with actual blind users, not just automated accessibility audits.
What a strong answer includes
- Identifies the real gap correctly: technical screen-reader compatibility isn't enough when the content itself (images) has no description.
- Proposes AI-generated alt text as the core unlock, a concrete, buildable feature addressing the actual content-accessibility gap.
- Extends beyond content description to input (voice posting), recognizing accessibility is a two-way interaction problem, not just consumption.
- Insists on testing with real blind users for success measurement, not just automated compliance checks, showing genuine design maturity.
Common mistakes
- Treating this as solved by basic screen-reader compatibility/ARIA labels alone, ignoring that most content still lacks meaningful descriptions.
- Only measuring success with automated accessibility audits instead of real usability testing with blind users.
Likely follow-up questions
- How would you handle AI-generated descriptions that are inaccurate or low quality?
- How would you prioritize this investment against other roadmap items?
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More questions from Meta
Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop