[She replies as soon as she's able. What has Frisk been telling this guy?? Though, it does make her feel slightly good that Frisk is referring science questions to her, or thinks she's smart enough to handle them.]

Uhm, well, Wonderland is what's referred to as a pocket dimension. So, uhm, every w-world, or reality that we know... think of it existing as a b-bubble, in a room full of them. They all have the same rules, like, bubbles being popped, but some are bigger, or smaller, and s-some float higher or lower than others. So Wonderland is like... t-the bubble wand. It's different, but still similar?

[Wow, that one got away from her.]

It's, uh, o-outside of space and time. if that helps. Uh, d-did that help? Maybe a more specific question, would, uhm, b-be easier.