The case against comprehensible input only

The case against comprehensible input (5 arguments) is what Lois Talagrand is proposing in a new video.

On this blog I have posted quite a few videos advocating the use of comprehensible input as a way of language learning. 

Comprehensible input is the only possible way we have acquired our native tongue as an infant. Muscular development of mouth and tongue cause a several months delay for a baby speaking his first few words and it takes a few years for a toddler to get consonants and vowels right to a degree that most adults can understand. When the child is attending primary education reading and writing first come into the picture.

This is also when the level of abstraction also allows introducing the grammar of its native language, mainly to formalize the structures it has acquired over the years.

But how about adults?

Let us watch the video: The case against comprehensible input (5 arguments)