“the report lost its novelty: it was there in front of you twenty minutes ago and it was there again five seconds ago. Soon your brain became habituated to seeing the report sitting there, a few inches from your face.2 So it started ignoring it and focusing its attention on other things, primarily anything that was new or different—whether external (a loud noise outside your office) or internal (a memory or future plan that just popped into your head). In short, our attention systems seem to have been built for scanning and detection, for reacting to the unexpected, for keeping up with what’s changing around us, and for finding what’s new—in other words, for zeroing in on distractions.”