Steve's already frowning, trailing after - although he doesn't sit - and about to ask what the hell tethered to the train means and how they cut that tie, because that's what they're gonna do, clearly, when Bucky goes on and -

And that, finally, is a lot to swallow. More than the gone in outer space for two years bit, because that had seemed straightforward. This... is a little twistier.

"But you're not dead," is the first part of that that seems worth parsing. "I mean, unless I am, too, and this is a really, really weird version of, I don't know. Limbo."