The Bark Bites Back at 2012-05-29 13:48:47:
Obviously the first thing that comes to mind in terms of structure for this story is its non-linear approach.
The temporal changes here are part of a storytelling device and I agree with some of the comments from yesterday that state if this were told in a linear fashion, some, if not much, of the charm would have been lost.
First of all, there's 500 days so we know we're not going to get all - it's not a reality show based on a 12 episode series schedule after all. So what we get are bits and pieces of certain days, some of them have significant bearing on the story at hand while others exist just to show the relationship as "being".
Without taking the time to go back and watch again, my gut tells me part of the juxtaposition of "days" was to actually show non-causality. If we think about it, watching things develop in a linear fashion allow us to see causation: this happen, but caused this which had that as a consequence.
Stripping the narrative of a linear approach essentially strips it of causality, leaving us even more engrained into Tom's shoes for he himself doesn't understand why they can't be together. As such, lives have an ebb and flow to them - ups and downs - and that's what we're presented here. There IS no cause for their breakup - it's just something that happened.
I started to post something about having been in Tom's shoes before and that for most people, they don't get any sense of closure or answers to why things ended from the other's perspective. Upon watching the 30 minute Q&A with the writers last night, I was happy to see them acknowledge this and how the scene in the park near the end was perhaps the one bit that wasn't indicative of true life, going so far as to having some people interpret it as being Tom's imagination (where did Summer come from? She's just... there).
The cause and effect isn't what's important to this story for Tom - it's the emotional roller coaster that being blinded by love can put one through. One minute, you're high as a kite, the next - you're insecure and angry because you've allowed someone to make you feel the complete opposite.