Language acquision device

There are many facts that are intriguing about the language. The fact that all humans have it, and all non-humans do not. The fact that children are able to learn it very quickly. The fact that there exist so many languages and children of all countries are able to acquire them at the same speed. This list can go on and on.
The way in which children acquire language is at the centre of a debate. Learning theorists such as Skinner (1957) maintained that language is acquired through reinforcement. Chomsky (1959) argued that language was far too complex to be learned so competently in such a short space of time, by cognitively immature toddlers, merely by reinforcement.