I honestly don’t think Primer is meant to be understood. I think I read somewhere that their goal was not to make a cohesive storyline, but rather something that was open to interpretation.
I saw a full explanation video on YouTube a couple years ago. The story makes total sense, but it's buried in several Layers of recursion, which takes a while to resolve
Yeah, I watch that about once a year. It's, I think, the only time travel story that actually follows it's own rules.
Have you seen Upstream Color? Same guy, really interesting story. It can lead into Blade Runner 2049 elements about consciousness and memory.
This movie gets a lot of love among a certain crowd I feel. I watched, but I feel the diagram and timeline exploration takes so much effort and energy it's not really a story any more. It's just mental masturbation (kinda like tenet).