A Twilestia story. ...But if that's what it is, then why do I have this overwhelming sense that something terrible is going to happen Luna?

Random story about Twilight having an acorn for a teacher. Please read the full description for more details.

What if the world around us is all a lie? What if we don't even know it? Or even worse, what if we're the only one that does know it, but we have to pretend we don't every single day?