 This is John B. Wells from the left seat of the mighty Ark, where we make our way by way of the caravan to midnight, through the desert of vacuous content and opinion, to the oasis of rational thought and a few facts. Those who have not lost their sense of wonder and discovery, enlightenment, and maybe if we're really, really on it, some illumination, we could use it. John B. Wells and Ark Midnight, 7 to 10 p.m. Saturday nights on KSLM.