The vast majority of people have an ongoing conversation with themselves, an inner voice, that plays an important role in their daily lives. But between 5-10 per cent of the population do not have the same experience of an inner voice, and they find it more difficult to perform certain verbal memory...
Honestly I'd kind of like that in some ways. Language is actually pretty limiting, so not being stuck with it for thinking would make some thoughts easier to convey to yourself.
I don't think it's limited like that. While I usually think in sentences, it also happens that I get ideas that I either can't express in words or it happens so fast that I don't bother trying to think it through in sentences.
Try to think of a house and notice how you don't need to describe it in any detail to instantly visualise how you think a house looks.
It'll be interesting to hear what they find in the ongoing research, but it's already clear that the brain is not just a large language model.