An interactive explainer

An average is a lie of compression.

The moment you average a thousand requests into one number, you have thrown away the twenty that were broken. Watch a 50 times slowdown move a dashboard by 98 ms and never trip its alert. Then ask the same thousand requests a different question, and find the twenty people who left.

Observability · Percentiles and p99 · Alerting

Deployment & Cloud · Intermediate · 10 min · Why your dashboard was green while users were leaving — an interactive explainer on ViLearn, with a simulation and a knowledge check. All explainers.

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