I just watched it, and Holly fucking shit.
I mean, I knew. I was accidentally spoiled, so I couldn't even pretend. And they really did it. The way, there's no coming back for Carson, because even if they meet him in some parallel universe, it's not gonna be real him. Why?? Why erase Carson off, so completely?
I actually started crying when I saw Rodney cleaning his room, and I didn't stop till the end (emotionally unstable, anyone?). ANd the last scene was just devastating. I don't think I'm donna watch this episode soon. Fuck.
It didn't happen, ok? Just another, Replicator-induced nightmare.