The content likely doesn’t matter, but I read it helps the baby recognize the parent’s voices (esp the Dad’s, Mom already gets a lot of time), and it can also help them get a head start on recognizing the phenomes of your language.

Only let the OP add new title candidates, but then use reddit voting to select the replacement?

Probably still game-able, though

When gaming online, Chinese players sometimes type “99” or “9898”, and I learned it means “go! go!” or “let’s go!”

That video is super, super wrong, and nowhere even close to “just a different perspective”. To demonstrate, Mercury and Venus should periodically come between the Sun and Earth, but that’ll never happen in that model.