>Then he took a dry-erase marker and wrote on the board: GROWTH. >Mark’s goal was 1 billion users. >Every idea we’d bring, he’d ask, “Does this help growth or

>Then he took a dry-erase marker and wrote on the board: GROWTH. >Mark’s goal was 1 billion users. >Every idea we’d bring, he’d ask, “Does this help growth or not?” >If it wasn’t driving toward that goal, we didn’t do it. A lot of people have described Facebook as a cancer, but I have never seen it spelled out so literally.