I chuckled aloud at that... such an odd thing to add to such a heavily thought out topic.
The way I see it, every choice you come across has already been made. There is already a timeline to coincide with the choice, but you don't get to examine it. You only get to experience the timeline with the choice that you made.
Kind of like a multisegmented movie. Each scene is recorded and waiting to be played, but instead of the original actor, it is replaced with you.
Let's get a little complicated. You are drinking at a bar with some friends. You meet this chick and decide to go back to her place, half because you are drunk, and half because you think you are getting some play tonight. The next morning, you realize, "Oh shit! My girlfriend is gonna be pissed!" So you hurry home, safe and sober, but with a pissed off girlfriend. Had you chosen to not follow this girl home, you would have got on the road drunk and killed an innocent man who was driving home from a late night at work. Both scenarios have already happened, no matter your choice. But you chose to follow the timeline where you had a good time, remained safe, but upset your girlfriend by cheating.
It is hard to explain, but I hope you get the idea, and if you need me to elaborate, just ask.