That means, in all possibilities, he might stumble upon a version of him who hadn't killed Jessamine. He doesn't know what he'd do if that were to happen; he merely settles for stuffing it into the back of his mind to think over later.

"Huh." As far as he knows, the Outsider doesn't have the power to do that.

"Thanks," he says abortively. It's always a good idea to keep an eye on children-- they see and hear a lot more than anybody would ever expect. "My name is Daud. What's yours?"