Social is everywhere: Scrolling across screens in train stations and storefronts; photos of friends’ vacations piped to your phone; the video you helped go viral when you watched a third time, and then shared with the sales team; product reviews that aided a recent purchase, and the clever infographic shared on Twitter that surprised you this morning. Advertisements have been made interactive. Your social world includes a real-time feed of the musings and activity of colleagues, siblings, target demographics and global corporations, all whipped into a content-rich froth of emotive, demonstrative …