Well, when you consider how you can store Pokémon inside of computers... yeah, I'd say it's pretty hi-tech. You just gotta look past the rural towns before it starts to show.

[And even then, it's only in small clusters until the big cities. Not like Violet's got much in the way of technical marvels.]

As far oceans, when you grow up on an island, you get used to the water. It's about as close to home as I'm ever gonna get in this place.