Language is actually trivially simple: continuous disambiguation in grammar, and continuous ambiguity in semantics.
The evolutionary problem is achieving in imagination the same level of modeling that we have in body movement.
Once we had complex body movement (our neural density is far higher than other creatures) and complex motion-planning, it was somewhat deterministic that we could gain complex verbal planning.
These problems seem difficult until you work with recursive neural networks long enough. Then the brain is a very simple thing that just far more neural computing power than any of our competing life forms.
An octopus for example, is interesting, because while we have a spine that extends our brain into our body so to speak, the octopus has eight of them, and they do a lot of their own processing the way our heart and lungs do their own processing.
Far too much ‘cheap’ philosophy, not enough ‘expensive’ physics, evolutionary biology, cognitive science, and artificial intelligence.
Learn something substantial.
Philosophy can assist us in determining choice, preferences and goods It is notoriously if not catastrophically faulty at anything we call ‘truth’.