Here’s a neat step by step walk through of each of the timelines that get created by Aaron and Abe.
This really helps appreciate this tightly budgeted movie better:

http://digestivepyrotechnics.blogspot.com/2015/01/primer-plot-explaine d.html

Great review and explanation of Primer.. I made a simplified version myself that also attempts to clear up some of the confusion. Hope it’s helpful http://www.astronomytrek.com/primer-2004-explained/

[…] course. I like good movies. For example, I loved Moon, Memento, Donnie Darko and Primer. All excellent films that are well worth watching. Then again all these films fall into certain […]

Yowsers!!!! Just watched the movie, and me brain is ackin’ mate!!!! Wooooooh. Gotta watch it like 10 more times. Its gonna be a long nite!!!!

Hey, I just came across your post when I was looking up Primer, since I heard about it but didn’t know what it was. Thanks!

If you like, this might interest you: http://xkcd.com/657/.
The lower right chart depicts ‘Primer’.

I really like your timeline. I watched the movie once around the time it hit DVD. I didn’t follow very well, but I was *very* intrigued.

In the last 2 months, I got a netflix subscription and had the opportunity to re watch this movie several times. I tried to visualize what was going on in my own head before “googling” explanations and timelines.

From what I imagine, your timelines fit very nicely, except for *maybe* a couple of places. I say *maybe* because, as you say, there’s literally tons of room for discussion, and perhaps argument if you like to fight as much as I do.

With that said, I again affirm that your timelines are very, very great at explaining what goes on. Yet, I feel they are slightly off somehow. I cannot say more specifically how, because I have not tried to detail the timelines by hand (or by paper and pencil). But, while watching the movie simultaneously with these timelines, some things don’t line up very well.

It’s hard to exactly say which things don’t line up, but I think these points occur where the recursive paradoxes jump in to write, re-write, and over-write the previous timelines, as you have already indicated as the cause for general confusion. FASCINATING!

I feel your timelines are very, very close. I guess my gut feeling doubts surface with respect to 1) when exactly Mr. Granger comes in, 2) How Aaron attempts to gain “control” over a timeline by bringing A(0) and B(0) through Failsafe(0), 3) rearrangement of boxes, and 4) who exactly has control over the macro failsafe (it could be Abe or Aaron depending on what clues you look at).

Let me address #3 as my biggest concern. I thought one of the box rules was to not disturb any box in any way once it had been powered up. I would really like to see how your derived timelines might change if this rule were strictly adhered to. Of course, the statement from Aaron rings in my ears that boxes are in fact *not* one-time-use only, but are “recyclable”. I wonder if it is this statement that inspires the idea that boxes A(0) and B(0) are collapsed and transported through Failsafe(0). I can definitely see Aaron entering Failsafe(0) soon after discovering it in order to gain “control” over a timeline. But, perhaps there is a new timeline that results from Aaron’s manipulations (perhaps at the dire expense of some other version of himself) over his own box to create a failsafe for his *crazy-exbf-shotgun-wannabe-hero* experiment.

I think this is bolstered by the fact that early on, Aaron and Abe must trust each other to attempt the initial box experiments. In other words, either man cannot run his experiments individually because he may not be sure of the consequences until a failsafe has been setup to provide and escape from a botched experiment. Thus, the first failsafe to be setup (by Abe, presumably by your timelines), should not be altered in any way by either person (I assume their scientific/engineering minds would reason that this is the very reason the very single *original* failsafe was setup).

Could this variation explain Abe’s ability to travel back before Aaron’s failsafe and arrive at the park conversation and pass out instead of following Aaron’s pre-recorded *prescience*? Aaron was not willing to destroy to MACRO failsafe represented by Abe’s original Fasilsafe(0). No one tries to exit at the start of this failsafe. And, when Abe does exit at the start of the original failsafe, he passes out because he is so exhausted from his very, very long travel from point “B” to point “A” (the start of the failsafe, very far into the past with respect to where Abe feels the failsafe needs to be used).

I think your timelines hit many points spot on. For example, your timelines explain the different versions of characters with earpieces (like timelines where no one has an earpiece, just Aaron with one, and Aaron and Abe have one when they try the *shotgun experient*).

Point #4: One incongruity that sticks in my mind is that there are clues near the very beginning of the movie that seem to indicate that Aaron is goading Abe into building a man-sized box (but Aaron has no earpiece). He wants to rush through experiments that indicate the time-travel capabilities of their device (flipping switches, etc.). It seems like Aaron wants Abe to build devices so that experiments can be built around later Failsafe box versions. Could this theory lead to a version of Aaron that records conversations, leaves those recording to another later version of himself, and escapes to another country to carryout warehouse sized experiments? This theory might be backed by the fact that *ALL* early work on the device occurs in Aaron’s garage. He basically has control over *EVERYTHING* in that garage right from the get-go. He also has personal access to some of the parts manufactured at his company without need for purchasing them (as Abe thinks they will need to). He very well could have built some macro failsafe independent of the the majority of the movie scenes. It is Aaron that first explains to Abe how to feed energy to the device, then cut power and let the device feed itself. Abe jumps in later in one of these timelines to confront Aaron in the park but passes out due to the length of time-jump.

Pleas excuse the length of this post. This is the first site I came across (that I liked) in my first attempt to find an explanation for Primer. I certainly haven’t spent the time to debate or derive by hand what I believe to be are valid timelines. But I appreciate your version! Thanks and happy holidays!

you don’t have to have windows for that anymore. they have a mac beta now. just watched the movie on my macbook about 20 minutes ago

It’s worth noting that Netflix has this as an “Instant Movie” so I might have to actually boot my laptop into Windows in the next few days to check it out.

@Matt` – Yup, just a side note. Memento had a huge budget compared to Primer and thus is much more polished, and effective. Keep that in mind when watching the movie. It is a whole different experience.

@freelancer – thanks for the recommendation! I’m glad you mentioned it. :)

@Nathan – LOL! Holly fuck would be painful indeed. Typo fixed.

> I still can’t figure out what in the Holly Fuck happened in that movie.
I think you mean “holy fuck”. Holly fuck would be painful ;)