Near the end of Episode 3:
Itsuki: Anyway dude, let me sum it all up for you: I am one of many in a group of espers that believes Miss Suzumiya is God. We are under the impression that what she says and does affects how this world is built, and that just her being bored of this world can wipe out our very existence.
Kyon: ...You're high, aren't you?
Itsuki: What are you talking about, giant talking cupcake?