It's speculation on their part. A person seems to have vanished if they never saw them again, no confirmed sightings but that doesn't mean it's true. There's actually no proof from Blake or anybody that he indeed disappeared. Yeah, to them he vanished but why couldn't that be a false statement? Whether it's unrealistic or not, it's irrelevant. You remember last night? The way you talked down to people like you had to spell things out for them to make em understand?? Well now im putting you in the same position. How many times do I have to say that just because Blake said he vanished, it doesn't mean it's pure fact that he never appeared again. How would anybody know for sure that Batman wasn't out there lurking in the shadows, even if there were sighting, they could have been unconfirmed. TheShape, me, and a handful of others told you this and you still don't take it in. If what you say is true, and people didn't even see a sighting (unconfirmed), then he's a damn ninja dude. He can get away with not being seen. Blake is just using the term like "When Batman disappeared that night, y'know when none of us ever saw him again". That actually means nothing. If a drug lord is never to be found again, he flees a city according to the police, they never saw him again and neither did most people so to them he's vanished...but does that automatically mean it's true? Could he have been hiding out in the city the whole time, never getting caught? Sure. Your argument just doesn't hold much water to me.