Ineluctably, which is to say unavoidably — just as it was unavoidable that, having said the word, I would feel the need to define it, and just as it was inevitable that you, whom I've never once met, would say “I know”.
Because you do know, and I just denied you the chance to show me. Yet in saying “I know” you are quite predictable, almost ineluctable in a way, and well, since you're being so probable, now you're suddenly (presumably) the barest human abstraction to me; a straw man, a straw woman, hardly a thing at all.
But this is ridiculous, and I am being unfair. It seems we were fated to meet like this, with me being an asshole and you seething quietly, chomping on every little word, which is why perhaps we shouldn't meet at all, if only we couldn't, if only it weren't too late.
This is a way we've never met. It joins another way, ancestrally, by adverbs.