I want to build a "Google Maps that doesn't make you dumber."

For local navigation, first and foremost. The goal is to teach you how to navigate your locale, so you use it less and less. You still will want to ask it for traffic updates, but you talk to it like you would between locals who know all the roads.

As a model for how to do AI in a way that enhances your thinking rather than softens/replaces it.