> Form ideas without the use of language.
Don't LLMs already do that? "Language" is just something we've added as a later step in order to understand what they're "saying" and "communicate" with them, otherwise they're just dealing with floats with different values, in different layers, essentially (and grossly over-simplified of course).
LLMs don’t form ideas at all. They search vector space and produce output, sometimes it can resemble ideas if you loop into itself.
But language is the input and the vector space within which their knowledge is encoded and stored. The don't have a concept of a duck beyond what others have described the duck as.
Humans got by for millions of years with our current biological hardware before we developed language. Your brain stores a model of your experience, not just the words other experiencers have shared with yiu.