This question is a classic Fermi problem, designed to assess your problem-solving and estimation skills rather than a specific factual recall. The goal is to demonstrate a logical approach to breaking down a complex question with limited data.
To tackle this, you'd typically:
- Clarify Assumptions: Ask questions like "Are we talking about all types of 'likes' (posts, comments, photos)?" or "Are we considering global users or a specific region?"
- Estimate Key Variables: Break down the problem into manageable components. For example:
- Estimate the number of active Facebook users worldwide.
- Estimate the average number of times a user interacts with content (likes, comments, shares) per day.
- Estimate the proportion of these interactions that are specifically 'likes'.
- Formulate an Equation: Combine these estimates into a calculation, e.g., (Active Users) * (Interactions per User per Day) * (Proportion of Likes).
- Refine and Justify: Consider factors that might affect the estimate (e.g., user demographics, time zones, peak usage hours) and explain the reasoning behind each number you choose. The final number is less important than the structured thought process used to arrive at it.
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