"That you know of," he jokes lightly, but then straightens out again. "It's still way above my paygrade, don't feel too bad. It's exhausting to try and think about it too hard." Bucky definitely doesn't like to consider it - how many other Buckys are out there, how many went through the Red Room, how many woke up to find themselves a monster. Hell, how many of them haven't even woken up from that nightmare? It's too much to consider, so he just... doesn't.

"I don't know yet, honestly. I don't know how much he went through that was the same as me. But..." A pause, as he edges into sentimentality again. "For what it's worth, when I came back, when I took up the shield... Our world's Sam was a huge help. He made me want to be better. To deserve my second chance." And he's sure this Sam is just as good a person as their Sam. Maybe that's why it's easy to open up to him a little bit.

He looks a little thoughtful as Sam mentions his experiences, though. "PTSD. Isn't that what they're callin' shell-shock these days? My dad talked about shell-shock sometimes."