After a long stretch of balmy, beautiful autumn days, the cold has come this morning. I just finished a brisk pre-dawn 30 minute walk up and down the hill in front of my house, and I was bundled up as if for winter: three layers of shirts, a warm hat, and gloves. It was an enlivening, awakening walk, the kind that my dad would have said “gets the blood pumping”. I felt good, but I also felt cold. The clear sky somehow had a frigid appearance, as if the last few stars were struggling to keep their lights lit in the cold. Cars rushed past me as if they couldn’t wait to get somewhere warmer.