"Well, yeah." Daniel looks at him, frowning fiercely, torn between wariness and confusion. "You just met me. And on that subject, how do you know my name?"

The guy shows up out of the blue - the literal blue, mind, straight from the stargate without even realizing it - allegedly from Earth, and he can inexplicably shift phase and knows Daniel's name and is clearly familiar with him in some way. That's too many strange variables lining up under Seth's name. Daniel's definitely going to need an explanation.

This'll have to be later, it seems like, because a fresh barrage of explosions rips through a strip of buildings that's little more than a few blocks away, and Daniel is forcibly reminded that they are in fact standing in the middle of an intraplanetary civil war.