What would happen if you spoke ONLY nonsense to a baby until 13?

I wonder what their concept of the universe would look like!

No way to run this experiment ethically tho. Although I'm not an ethicist, so I am unqualified to make that otherwise obvious claim.

The baby would have a more or less normal and loving life. More or less, cos it's hard to interact in the world and expect only nonsense (or not these days lol). I suppose you could limit the baby's exposure to "normal" language, so you could spend 95% or her day speaking only nonsense.

The trouble I see would be how her parents live a normal life. They'd have to communicate somehow. Even if they spoke normal to each other, but never to baby, the baby would learn something.

Typical baby upbringing is reading books and pointing at objects. In nonsense land you'd what, randomly pick words and make it impossible to identify what's what? How would the baby ask for things; it'd be nonsense back to the parents..that could pose a problem.

What would it look like I wonder.

And I don't think it can be hypothesized w given expirements at all, because when else has there been loving parents there as well we non-standard communication. Abandoned kids not learning to talk is out of scope.

I imagine under a loving environment, and perhaps the correct brain soup (idk?), I think it'd be possible for the child to learn something entirely new. Perhaps they invent a whole new type of langauge, or something else nature's finding-of-a-way could create as it adapted itself to the randomness.