[ It's probably good that Fitz switches gears mid-stream, because for a moment Lily's face takes on the universally known expression that says 'none of the words you are saying make sense but I am paying attention and madly trying to translate it without letting on that is what's happening.' The sleeping potion analogy is better. God. Science. ]

That sounds like an interesting application. It'd definitely merit investigation and in-person discussion as to the logistics, I think.