Hey Aha. Thanks for playing! I think the theme idea, was that the glasses are in danger of overflowing with liquid. And, the little carbonated molecule needs to overflow out of the glass in order to fulfill its destiny of escaping the glass.
Right but the glass never overflows, and the glass overflowing is not the main danger in any way. (I don't even think its possible to make that happen?) It is also to my knowledge never implied within the game.
