A few days ago, my friend John spotted Michael Jordan in Wean Hall. I commented that John should have had Jordan draw a graphical model on a piece of paper (or just draw it on his arm with a permanent marker) and autograph it!
On another note, I saw this image in a paper called Object Categorization by Learned Universal Visual Dictionary by Winn, Criminsci, and T. Minka. This image, which depicts a rough human segmentation of an image of a cow, contains a 'null' space. In Statistical Machine Learning class, we reviewed some linear algebra and thus talked about the 'null space' associated with a linear operator.
Ever hear of google robots? Ever read 1984?