Description from the squid list:
"Frank Wilczek
2004 Nobel-Prize Winner in Physics; Physics Professor, MIT; Author, The Lightness of Being
Light and matter have long been seen as separate: spirit vs. flesh, earthy vs. divine. However, according to Wilczek, physics has blurred the line between light and matter, showing that reality is far from permanent, but rather ever-changing. The 2004 Nobel Prize winner in physics takes a closer look at the very nature of reality, and how our perceptions of reality have changed over time."
Official Website: http://laughingsquid.com/squidlist/events/index.php?com=detail&eID=177905&year=2008&month=9