Technology, computers, internet - what people do hasn't changed, the tools used are merely different. We still shop, talk, and socialize. There is more as-it-happens communication, but the basics of human interaction have not changed.
Dan Pink presents the puzzle of motivation. He points out the great fallacy of 21st century: the mismatch between what science knows and what business does. While most people would agree that money is an excellent motivator, especially in a professional environment, the science proves us wrong.
I often use this three-word combination with my clients and on occasion when advising a student on the next career move. "You can have it good, fast, or cheap. Pick any two!" For the people that haven't heard this before, the relevance of it usually takes a second or two to sink in.