I don’t think Austin’s dictum is quite right. It’s perfectly reasonable for a child to ask whether Santa Claus is real or whether the Easter Bunny is real. You could ask whether the Easter Bunny is a real rabbit, or a real spirit, or whatever. But there’s also a question you can ask while staying neutral on whether it’s a rabbit or a spirit: Is the Easter Bunny real? That is, does it really exist? The answer seems to be no. It’s a folkloric figure that has been passed down for generations; the folklore is real, but the bunny is not.
maybe in this universe
