This post explores Google Analytics 4 (GA4) and its relationship with HyperLogLog (HLL++), a probabilistic data structure used for counting unique users and sessions. I watch way too much Seinfeld. In one episode (“The Strike“), Jerry & George quote a
Differences between GA4 explorations and reports
![Differences between GA4 explorations and reports Differences between GA4 explorations and reports](https://02250d.a2cdn1.secureserver.net/wp-content/uploads/2020/02/google_analytics-750x350.png)
In our post about GA4 thresholding and reporting identity, we noted there will be meaningful differences between reporting with BigQuery exported GA4 data compared to GA4 predefined reports & GA4 Explorations. Understanding those differences is important, but you also need