"It means that time passing here has absolutely no relation to time passing in Fodlan. You could spend a decade here, and return a mere heartbeat after you left--or you could meet someone who is much older or younger than they should be, or someone who should be long since dead. It means that we have no way to reach Fodlan at all from here, save through whatever magic was used to pull us here to begin with--even if you could sail or fly the whole of this world, it isn't connected to our own world in any way."

That..... is the easy part. Time. Space. Easy concepts to grasp. They're stranded, and it doesn't matter how long they spend here. The rest of it though? That's somewhat more difficult to put into words. But to not explain it immediately--that's a breach of trust, isn't it? To remain silent on that point is to invite accusations of betrayal. Just because they personally hadn't fought together doesn't mean they're enemies--or at least, he doesn't want it to mean that.

"Because this place is so completely apart from the Fodlan we know, it also means that people can experience the same events unfolding differently. I remember fighting under Claude's banner, not Dimitri's, but I suspect that you remember me fighting at your side. Both of those things are true."