My first thought upon reading this: what if DALL-E (or a similar AI) uncovers some kind of hidden universal language that is somehow more "optimal" than any existing language? i.e. anything can be completely described in a more succinct manner than any current spoken language. Or maybe some kind of universal language that naturally occurs and any semi-intelligence life can understand it. Fun stuff!
All human languages are about the same efficiency when spoken, but of course this mainly depends on having short enough words for the most common concepts in the specific thing you’re talking about.
https://www.science.org/content/article/human-speech-may-hav...
And there can’t be a universal language because the symbols (words) used are completely arbitrary even if the grammar has universal concepts.