While not doubting Marissa has worked incredibly hard both at Google and Yahoo, I would like to see how effective the work was during those all nighters and 130

While not doubting Marissa has worked incredibly hard both at Google and Yahoo, I would like to see how effective the work was during those all nighters and 130 hour weeks with no holiday. There are times you need to stick with it and burn the midnight oil but this seems to indicate something is broken somewhere.