I recently graduated with a PhD in Computer Science from the University of Ottawa. Most of my Saturday nights are spent writing hobby code (right now, my fascination is with Evolutionary Algorithms) - which speaks to the lack of my social life.
I love to learn new things. Paradoxically, don't enjoy reading more than 10 pages per new topic (much to my disappointment). I have therefore developed an ability to speed read - something that the readability and speed read it bookmarklets have helped with.