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With Spring Break and seasonality in play right now I'm curious about techniques for separating/diagnosing temporary drops in interest due to user behavior in a category from other things like drop in ranking or similar. How quickly can you tell these apart? Analytics will be delayed a few days for instance, other tools take time to update. What should we be looking for and when to say "ok, this too shall pass" as opposed to "did we make a bad site update" or something similar. Any tips?