ne thousand: That’s approximately the number of instructional hours required of U.S. middle school and high school students each year.
Four thousand: That’s approximately the number of hours of digital media content U.S. youths aged 8 to 18 absorb each year. (If you doubt that’s possible, be sure you’re taking into account the near-universal practice of “media multitasking,” or consuming content on more than one platform at a time, as when a teenager listens to a song on his MP3 player while scrolling through Facebook on his smartphone while watching a video on his laptop.)