Not completely sure. Couple of months ago? I was in Atlantis handling this whole ambassador thing.
[JLA] Yeah, Arthur. Try not to be surprised that I can type.
Well. Another dimension. You didn't leave where you came from, so you're kind of in two (or more) places at once. You won't remember here if you leave and you won't remember being here before if you come back (usually). It's tricky. That's the short version. Gansey can probably explain it in more detail - weedy guy at the DOA, you probably ran into him or someone on his team.