I could be wrong here, but it seems to me that a common aspect amongst all languages is the tendency to raise the pitch of your voice slightly when asking a question. Especially at the end of a question sentence.
If I’m wrong about this raised pitch being common amongst all languages, at the very least do all languages change their tone slightly to indicate that a question is being asked?
I guess there needs to be some way to indicate what is and isn’t a question. Perhaps a higher pitched voice reflects uncertainty. Is this something deep rooted in humans, or just an arbitrary choice when language developed?
Yeah she’s great? but notice how her inflection consistently goes up? at the end of sentences? or clauses?
Is that what you meant by valley girl?
Yes. That’s a major component of the “valley girl” accent.
Nah I lived with a woman in Burbank. Not my scene. Out of all the people in the LA suburbs I met whom I didn’t like, that annoying valley girl accent never came up.
What about the ones you did like?
People are amazing at dinnertime.
When you say you “had friends for dinner” …
So that movie Coherence except your character got annoyed and left early so they had no clue of the shenanigans, and slept well.