Well no doubt its a good series but science behind it was very easy to guess as early as from ep. 2. Although all characters have depth but the mystery behind this everything was not that deep, at least when there is a sci fi like Interstellar on time relativity which had blown your mind then you definitely need more but i was disappointed on that part, rest series was good. I still think stranger things had something fresh that i hadn't seen but the science behind 'Dark' was very predictable and when everything came on the surface it was exactly as i expected from that CAVE to that Prototype of Time Machine.i might just jump to end in second season.