Data should be used to establish the 'observability' of a business—understanding what is actually happening (diagnosing). However, data cannot dictate the solution; that requires creative empathy and design thinking (treatment).
Core Principles
- 1.Data reflects reality: Use metrics to understand user behavior and spot anomalies, not to predict the future with certainty.
- 2.Diagnosis vs. Treatment: Use quantitative analysis to identify *where* the problem is, but use qualitative design/intuition to solve *how* to fix it.
- 3.Avoid False Precision: Acknowledging that metrics (like A/B tests) have limitations and cannot replace long-term product vision.
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"You want to diagnose with data and treat with design. Data is not a tool that's going to tell you what you should build."