I wanted to write an extensive post about time travel (Novikov's Principle of Self-Consistency, the grandfather paradox, the butterfly effect, the bootstrap paradox, the multiverse interpretation (Everett), the chronology protection and the theory of relativity, and determinism).
(Yes, «Dark» is my favorite show)
Why does this arc have a lot of potential that can be easily wasted, and why Atsushi can be «that man»?
Why, even if Fyodor ends up living, it shouldn't be Atsushi's achievement (although we're in a manga, so anything is possible)
But I'm such a lazy ass, and you're my cute geniuses!
So just keep the pic without the context:













