Matt, a longtime friend of David’s, is in town for a view days. However, I don’t believe I will be able to join him for dinner tonight, as I have some tricky graph coloring to do. My tasks at work are becoming more demanding, so I have less idle brain cycles to contemplate homework related gobbly-gook. But all around, it’s fun stuff. I slept much better last night than the previous week or two, I’m hoping coalition forces have completely routed the evildoers (my cold).