The design principles of a Man-Machine framework that truly respects human virtuosity can be explained by the Three Levels of Cognition developed by Prof.

FORBES: The Man-Machine Framework: How to Build Machine-Learning Applications the Right Way

Ira Hyman, a professor at Western Washington University who specializes in human memory and cognition, contends that mobile devices are more distracting for parents than radio, conversation and other outside-the-home diversions of yesteryear.

WSJ: The Perils of Texting While Parenting