I think your approximations are focusing solely on keystrokes, whereas the parent specified just "data", which makes me believe that network traffic, applicatio

I think your approximations are focusing solely on keystrokes, whereas the parent specified just "data", which makes me believe that network traffic, application logs, etc are included in this. I can believe the 1PB/day number, it's not that far fetched when you consider the above. I also agree with the parent. There are so many possible scenarios and things to log that eventually you're playing a "logging" version of whack-a-mole. Even just managing these files (as the parent talks about) is really no trivial task. Honestly, I wouldn't even know how to begin managing a petabyte worth of daily data.