With the cold weather moving in, and the days growing shorter and darker, I remember a recent trip to paradise. KEY WEST. I landed in Fort Lauderdale, rented a convertible and drove down to the southernmost point of the United States. As I was driving I though about the magnificence of this engineering success. A beautiful highway surrounded by aqua marine waves. It's 113 miles long, built in 1938. It rises high over the Atlantic ocean at points, affording me a vista that stretches to that place where the sky and the ocean meet in a single filament of time and space on the horizon.