for me, the most startling sight of the tour de france 2012 was a yellow jersey leading out a reigning world champion for a stage win - twice. surely unprecedented [for starters they have to be in the same team] and even more so if both are british. it may not happen again in the tdf, even for this pair [though it will happen in the olympics next week]. i kept replaying the highlight clips, fascinated. it's like a conjunction of stars, which has not been seen before and may never recur. if it had been a movie we would all have woken up blind the next day and been attacked by man-eating plants.