Lance cannot come back from that deficit. AS cannot TT well enough to beat AC. Evans looked gassed today, I do not think he can beat AC either. Levi is too far back on the other GC men as well. If Lance really wants to screw AC over with a final shot he is strong enough to attack AC in the mountains on a day where a GC man would not generally attack. They cannot let him go and the better climbers could put time on AC, it appears he has sacrificed some of his mountain dominance for time trial ability. That is the best Lance can do for Levi. AS, Levi would need some serious time on AC to wear yellow at the end.