Bit too literal there. [ As per usual. And probably on purpose too. ]

We... have, but haven't. It's a long story, but— the abridged version is that we're from parallel realities. Similar, but not the same. I know you, just not... you.

[ Weird and complicated, but he knows Spock will understand, perhaps all too easily. ]

Captain James T. Kirk. Jim's fine, whenever you get around to feeling comfortable with it. [ It'll take time, he knows. ] Can I ask what year is it for you?