There's a sort of an up and down thing, which normally, not always, normally means that the person doesn't know the answer to the question themselves, so it's normally a question about the future, right?
Digamos que sube y baja, que normalmente significa, no siempre que ni siquiera la persona sabe la respuesta a la pregunta. Así que suele ser una pregunta sobre el futuro, ¿no?