[HarHarVeryFunny]

> Moro showed in a series of experiments that humans have difficulty learning non-hierarchical languages and use different parts of the brain to do so, which is highly suggestive that language is specialized.

The cortex is built for hierarchical processing, because that's what's needed to model the world we live in. Physical objects are localized and have hierarchical detail, and larger visual scenes are the same. The kind of sequential (temporal) patterns relevant to us are also hierarchical, whether in visual, auditory or other domains.

The type of connectionist architecture needed to recognize hierarchical patterns is a layered one where the receptive field and hierarchical level of abstraction grows as you ascend the layers. In our brain those layers come from different patches of our cortical sheet being connected. This is the reason that neural network architectures like CNNs and transformers also work to recognize hierarchical patterns in visual and temporal domains - because they both also uses these layered architectures, which is all that is needed.

The reason why the function of damaged brain areas can't always be taken over by other areas is largely due to plasticity. Our brain peaks in it's ability to form new synapses in the first few years of life. If you haven't learned language by age of 3, then you will never be able to learn more than a crude type of pidgin language, depsite all your "language areas" being intact. The same would be true of different part of you brain trying to learn language as an adult - the plasticity is no longer there.