Early 21st Century Runes, #1
How a modern-day Powerpoint presentation is displayed on a prehistoric copy of Powerpoint. Yes, I know there's a viewer, and I use it. But somehow I think that most Powerpoint presentations could be reduced to this enigmatic collection of characters without any real diminution of meaning.
It's kind of zen, isn't it... The more you look at it, the more beautiful it is. That plus/minus sign thing is a stroke of genius.