I know very little of this view. It is hard to imagine many sciences all jostling for the truth. It is hard to imagine science or truth without an everyday language to support it. It is hard to imagine anything without a language. And language too, apparently, comes from the id.
Linguists believe that the structure of language is embedded in the DNA. For example, all languages form sentences with subjects, verbs, and objects.
A headier subset of linguists believe that not only are languages embedded, but ideas, as well. As the language evolves, it gives rise to new “ideas.” They are released like bubbles — and form the basis of innovation. They trigger conscious evolution in groups of humans.
This is probably the same as your “id” idea, merely expressed using a different paradigm.