Obi-Wan listens intently while stroking his beard as he thought. Well... that would explain a few things. It was a bit hard to believe but the evidence was literally standing right in front of him. At the question though, he held up a hand. This... could get messy. He needed to tread carefully here.

"Before I answer that, tell me what you last remember."

Because he knows for certain that he must be from Anakin's future.