10/21 Got up at four because my brain was ready to do the work it had been contemplating since Friday. There was no discussion whether I was awake, I just was. By eight I had written a report and drawn diagrams for it, coded and measured a speed of 2,500 operations per second. Rest of the day in a jetlag-like disorientation. Slept an hour here and another there, my sleep rhythm will have a hard time reconciling that.