Questioner
In Rithmatist there's a Tower in Nebrask, why don't the Rithmatists just build a big moat of acid around it?
Brandon Sanderson
You'll see, when I get there. They have tri-- Number one, a big moat of acid is really hard, you think about how much acid you would have to get in there? It's got to be enormous. Because remember the Tower moves.
Questioner
Okay, didn't know that.
Brandon Sanderson
Yes, the Tower moves, and so there's this huge swath they have to keep defended, it's enormous. But that's one of the big things, the other thing is you can't just leave them there because they will find a way across, 'cause they know how to cross boats and things now. Because they can get between the islands.
