"Technology is what is now being blamed for multitasking overload. In some situations, that is certainly the case. In other situations, the issue might be too much work, an inefficient office, or just boredom with the job or school work. We can change some of those conditions and not others—but we cannot even sort out what is causing our frustration, exhaustion, or sense of failure until we understand what multitasking is. Once we realize that multitasking itself is the human condition—not an outcome only of too much email or social networking—then we can find practical ways to address the real problem, not the mythical one."
Via Howard Rheingold, Ivon Prefontaine, PhD
Cathy Davidson's "Now You See It" is an infotentionist's must-read. This blog post is more than a year old, but worth considering as a counterpoint to the experimental evidence that multitasking degrades performance. Maybe performance on single tasks isn't always the point. Like it or not, we live a world that requires multiple attentional antennae just to walk down the street (which you definitely should not do while looking at your phone).