Technology makes the tiniest windows of time entertaining, and potentially productive. But scientists point to an unanticipated side effect: when people keep their brains busy with digital input, they are forfeiting downtime that could allow them to better learn and remember information, or come up with new ideas.Paused the DVD I'd been watching to put together a shoe rack and do a quickie closet organization. Having already taken a break from finding out who killed Lily Kane, I thought I'd check voice and email, and take a quick peek at my google reader. Came across this article in the NY Times (online, of course), which says that I should probably spend a little less time doing exactly what I'm doing, as the constant digital device use contributes to brain fatigue and steals valuable processing time from my brain. I could have told you that, but I was busy updating my Facebook status.