OK - so long as you also agree that language is thought.
Until the advent of LLMs - language was considered the pinnacle of human intelligence. But humans have some need for mysticism at the root of their beliefs - so they chase the gaps in our knowledge. Like "God of the gaps."
Sure, world models will help navigate physical space; they are effectively the animal mind. Will they help unwind the laws of the universe? Probably not at all. Language is sufficient. Because it is thought.