Jim can't decide if it would be easier if she already knew about this or not. He never wants anyone to know about that hellhole, never wants to even think about it, but it sure saves a shit ton of time to not have to explain. Hell, even Hunter wouldn't know anything about it, if not for an inconvenient LOL that made him blurt out his train of thought with no regard for secrecy. Being in the Federation equivalent of witness protection sucks, regardless of how talkative he wants to be about the matter.

The Nightmare... sure, it's not subject to the same laws that bind his silence, but it's sure as shit difficult to avoid it. So for the moment, he just nods a little, setting that thought aside for later.

Besides, she's just written something much more interesting, if he's reading this right. "Whaht? Like... kash-nohv?" He's already miming a Vulcan mind-meld before he realizes she won't know what that is. "Uh... brain sprek."