It could have been real. [Eren glances sidelong at one of his dearest, most cherished friends.] A memory is a memory. Tomorrow, somewhere else, we might say, "I know that weird market wasn't real."

It's real right now. [The student has become the teacher? He just has a little more experience with this sort of thing, by now. But...everything that Maruki taught him is a big part of that - here, there, and everywhere else too.]