All right, between work and a cold, my brain just kind of…turned off while I was working on this post, so there isn’t as much depth as I typically try for. Though I also feel like this episode isn’t as strong, overall, as the first part. That may also be that, as noted, the first part hits me a lot harder with that “ah, I see, the dystopian early 21st century Star Trek predicted was in fact much too optimistic” feeling, however.
In terms of the concept, this one is right up there with “Whispers” as precisely the kind of unsettling/creepy thing that I really like. The execution in that one was generally better, I think — I feel like they never fully realize the creepiness in this one the way they might have — but it’s still a solid episode.