Compared to Dark season 1, if my memory serves me correctly, this episode of the first season gives us more info about what's actually happening than Dark did in its first season, and it's really surprising to me. Surprising because I didn't expect this kind of reveal until at least the 7th or the 8th episode, but if we're being honest, there wasn't much more they could've done and it would've dragged, so it makes sense they do a little bit revealing this early on. Not to mention you can kind of guess this reveal before it happens based on the other reveals and flashbacks they've done.
The reveal itself doesn't reveal that much either other than what we might've already guessed, so it's not like everything makes sense now, the reveal actually answers just a few questions and creates way more new ones instead.
This whole episode was captivating and the intrigue was at its height. Out of all the previous episodes, I think this was the most intense and also revealing episode, and even if the previous episodes didn't grab you that much, this is the one that hooks you back in and makes you want to see more.
The ending reminded me of the ending of one of Dark's season 1 episodes which I can't remember which, wherein we see that boy on the chair (trying not to spoil Dark), it had the same effect and I feel like that's what they were going with. Though I think this one revealed more than the Dark one.
All in all, I thought this episode was intense and on-the-edge-your-seat all throughout, and as we get close to the end, more F'd up things happen and more and more gets revealed, and so far I enjoyed this episode the most. Hopefully, it gets even better in the next ones and we get a satisfying and revealing ending, but knowing the creators of Dark, I doubt that would happen and we'd unfortunately have to wait a year or two for the next season to have even more questions.