It took me three viewings but I was finally able to follow the plot. I honestly loved it.
I watched the first time and was utterly confused, but I was sure there was a narrative that I just wasn't following so a couple weeks later I watched it again. This time I figured out the mechanics of the plot but I did lose the continuity. So, I watched it like 2 days later and literally took notes (like 3 sentances, not an academic study), and was able to follow the entire plotline.
Probably doesn't sound like fun to many, but for me it was an ideal movie watching experience. It provided the experience Inception promised but never lived up to (I did enjoy it as well, but it was not challenging to follow).
I agree, and I do use an open source one, but I disagree that we need to identify ourselves for everything. You can't even look at a resturaunt menu anymore without signing up for an account. Everything is gate kept behind an account, and those accounts are all so interconnected that when one is compromised, it might for multiple and often you will never know (and I'm not talking about password reuse).
Password managers are a good solution to the problem, I'm not mad at them, I'm mad at the problem that necessitates them.