On Chomsky's annoying mysterianism. His point is really not hard to understand and the opposite view, that we can in principle know everything if we "learn enough" is anti-scientific in the extreme. I won't use his words, because apparently, they aren't clearly stated.
Either we are natural creatures, or we aren't. If we are natural creatures there are things we can do and things we cannot do. We cannot fly like eagles, we don't have the visual acuity of a mantis shrimp, we don't have the capacity to smell as much as dogs and so on.
Continuing with the case of other animals, suppose someone says "dogs will learn how to use laptops, it's just a matter of "learning more" and eventually they will understand it".
That is a silly argument.
Likewise, we as human beings, while possessing properties and capacities which are unique in the whole history of life (as far as we know), are still creatures of nature. Like the dog never being able to use a laptop, there will be things we will never be able to do or understand.
We won't learn to breathe underwater like fish, nor can we understand how it is possible for matter to think. We know it can, but we don't see how it's possible. Likewise, we cannot comprehend the idea that the universe is as large as it is. Sure, we can draw a symbol representing infinity or alternatively, a very large number, but our brains quite quickly "shut down" when we start contemplating galactic distances.
But there's no reason why another, intelligent being somewhere else in the universe would have any problem understanding how matter thinks or have any issues contemplating gigantic distances.
Either something like this is true, or we are completely separate from nature and possess powers given to us by God, or whatever supernatural explanation you would like to invoke.