This has been discussed far and wide on HN. The basic consensus is that she mentioned this once to a journalist, and her 130 hour workweek was likely a once in

This has been discussed far and wide on HN. The basic consensus is that she mentioned this once to a journalist, and her 130 hour workweek was likely a once in a lifetime kind of thing. But journalists like to spin things up and the media is often just a game of telephone; and boom, you end up reading in articles all over that Marissa Mayer pulls 130 hours work week every week. One thing that I've learned living in Silicon Valley and meeting "famous" people regularly is that they're almost never as smart, brilliant, hard-working, etc. as the press makes them up to be. Sure, there are a lot of hard-working talented people here, but the image that the worldwide press builds of them is just plain exaggerated (and I guess it's their job to do so).