1. Amit Kohli/
2. Data in the Real World/
3. Why you can't answer next year's questions (disaggregated data)/

Why you can't answer next year's questions (disaggregated data)

The question your CFO will ask next year has no answer - not because anyone made a mistake, but because the data was collected at the wrong grain. Aggregation destroys information permanently. This video explains why the people designing your data collection need to think about questions that haven’t been asked yet, and how to do that without building a data swamp.