When did software get so powerful? I suppose it is “just” the combination of several HCI advances. The drag and drop, the live updating, the ability to select and filter. Still, I find the demo of Tableau Software impressive.
In the beginning, people programmed their hobby computers using toggle switches. The answer to HCI was “what user?” Then there was text, and written commands. Then there was the mouse and graphics. But what amazes me is the level of complexity the Tableau software seems to capture. It reminds me of this excellent Ted presentation by Hans Rosling about the power of data.