"A spell. It's extremely, absurdly complicated but it's basically doing the same thing the thingamajigs do, on a larger scale. In my head. It's built to help with learning languages, by translating what you say and then giving me translations for what I want to say and - um, I'm actually butchering the explanation, it's complicated, have I mentioned? It took me weeks," he explains. "I'm the one speaking the language, but it's like I have a dictionary of spoken languages in my head, except it's not all in my head at once, it shows me translations to what's being said at the time and gives me translations for what I want to say when I want them."

Pause. "Did that all make sense?"