1. Amit Kohli/
2. Data in the Real World/
3. Raw Data Has No Common Sense/

Raw Data Has No Common Sense

Timestamps don’t know it’s Friday. Attendance counts don’t know that three sessions is the threshold where behaviour changes. That’s not a data quality problem - it’s a feature engineering problem. The difference matters, because misdiagnosing it means giving up on AI work when the data is actually fine. You just need to squeeze the lemon harder.