4 ms·

Interesting to see that Facebook, being big tech+data driven company, needs a year to gather such statistics. I would imagine it to be almost real time there..

• yomly 7y ago
  There's probably a TONNE of cleaning/reconciling/deduping that needs to go on if they are trying to connect cross-platform users (like WhatsApp and Facebook) - especially over historical data. Sure, maybe going forward refreshing these reports might be quick but don't underestimate the inertia of having to go through that pain of integrating the data for the first time. Any analysis worth its salt will also need to go through rounds of sense-checking + checks for statistical robustness: this all takes time