Dropped by the doctor to get some sun-damage spots removed from the top of my head—this problem is not uncommon in pale white bald guys. They do this very simply, by dipping a swab in liquid nitrogen and freezing the spots off. They call it “burning” and it feels like burning, quite unpleasant. The doctor said I might get a headache, and I was wondering about sudden drops in brain temperature. Wait a second... maybe I could overclock.