Mobius lets the words wash over him and, honestly, even if he retains the words themselves, he'll probably have to sit on them and let them cook a little. Loki's clearly not in a great place to be explaining complicated shit like this.

"Well, this isn't fiction. Even if it might feel like it. We're all as real and solid as your home, and you can die just the same." He's not telling Loki a lot right now. Wouldn't go so far as to call it actively hiding it, but where does he even start? Maybe that's the same problem that Loki's having, a starting point for all the chaos. He opens and spreads his hands. "Lotta weird can happen in a year."