We're emotional creatures in a digital world. We're all busy trying to make sense of complex surroundings that are increasingly migrating into clouds of invisible bitstreams. Visualizations help us glean meaning from the datasphere, but there's plenty of room to improve the transformation of digital information into meaningful, expressive forms.
With a few notable exceptions, most data visualizations are completely silent. The possibilities for piping data streams through musical interpreters is an under-explored area and well worth devoting energy to.
Today I found this nice example of what's possible:
Listen to Wikipedia
I haven't been this thrilled about a new data visualization in a long time. (We might need a different term, since this is both a "visualization" and a "sonification." Maybe "data transformation" or "data reexpression.")