At first blush, the video below looks like art -- tiny dots scurrying across a black backdrop with a blue squiggle meandering through the middle.That's Louisville. Each dot represents a TARC bus. Watch:The video, which you can also watch here, depicts transit in Louisville on a weekday over a 24-hour period starting at 3 a.m. The dots slowly appear but then become legion, scurrying across the Louisville metro area. It sort of looks like those Star wars scenes when the Millenium Falcon goes into hyperspace.Vancouver-based programmer Andrew Walker made this video, and dozens others, using data given by the Transportation Authority of River City -- General Transit Feed Specifications, the same information Google uses to plot maps, according to Wired.com.There are also videos for New York City, Chicago, Perth and many other cities. Wired.com adds: