Quick advertising

You see more and more forms of digital signage. The last trend I noticed is huge electronic billboards next to the highway. It's almost like having big televisions on the road and it's tempting to stop and imagine yourself in a drive in cinema. That would cause some accidents, of course, so I'd better get the idea out of my mind. But anyway, sometimes it's even nice to see the commercial messages they show there in a 2, 3 second timeframe. Because that's approximately how long you have, while driving 80. Not much.