Here's the classic storyline for the ages:

We're behind 35-31 with 2 minutes to go. Kaepernick goes down and can't play. Alex Smith comes in and engineers a drive starting on our own 20 yardline. We're talking two minute drill here. We get down to the Ravens 20 yard line with 3 seconds on the clock. Pass to Vernon Davis as the gun sounds to win the game.

It is a possibility.

The Multiverse has spoken...