If you want to understand what’s happening in business and culture today, the tail end of the Agrarian Age offers several telling clues, according to Don Tapscott, co-author of “Wikinomics.” Monday morning, Don delivered the opening keynote at HR Technology Conference & Expo. He covered much ground—much like his book does. And the implications of his ideas are deep, going well beyond the scope of HR. One blog entry can’t do his presentation justice, and this blog entry doesn’t try to do so. But one thing Don covered is Generation Y’s sharp departure from older generations’ approach to working. That’s highly relevant to HR.