Question: what are some deep questions related to language acquisition and learning?
Answer: What are the Language Acquisition Principles? ... 
Do babies have a speech community? ... 
What do these words mean? - ... 
How does neurolinguistics support infant language? ... 
Is neurolinguistics a science? ... 
What does generative grammar mean? ... 
How is the role of a student in CLT different from that in the Audio-lingual method?