I have to admit that the dreams are strange, and that we've seen more than enough signs that they are more than just dreams. But there is always the possibility that something happened two years ago and left this world unstable. In fact, that could have been a spell, or a Pokémon, or even a manmade invention.

[He suddenly frowns, deep in thought.]

...There are powers here. Sabrina's, and a few other psychic trainers'. Unless those are related to Pokémon, somehow?