Children have a “window” for maximum language learning, while adults tend to have trouble learning a second language. This window must exist because children around four years old learn grammar and vocabulary so quickly; this exponential learning cannot be explained by adult intervention or guidance. Language learning can be encouraged, and children must be in a social environment to absorb language, but the exact words they remember and the grammar they display probably has a biological basis.

The Window To Learn A Language

The audible signals people can produce are not a series of crisp beeps like on a touch-tone phone. Speech is a river of breath, bent into hisses and hums by the soft flesh of the mouth and throat.

Since children learn languages as early as 18 months old, but can only learn from observing adults that do it the right way, they have no way of actively telling what’s right from wrong – they’re not studying languages, they just absorb them.Yet they still apply the right rules at the right time. For example, even deaf children apply the correct grammar, just by learning sign language from their parents.

Early Instinct

The form words take doesn’t have a direct relation to their meaning.For example the word “cat” doesn’t sound like a cat. The sound cats make is “meow” and they’re silent when they walk, whereas “cat” is a pretty strong, snappy, short and loud word.This is a good thing, because it keeps us from trying to decipher what the word “cat” means by thinking about the way it sounds and instead lets us jump instantly to the result, because we’ve paired the word with the image through generations of rote learning instead.

Signs Are Arbitrary

Grammar is a crucial part of language, and it pays to know it well. However, while you’d be punished horribly in school in the 1920s for bad grammar, today it’s not such a big deal, mainly because grammar rules are only one type of rules that determine how well you use language.Grammar rules are prescriptive, which means they tell us how we’re supposed to talk or write. More and more though, scientists are concerned with descriptive rules, which describe how we actually talk.

Grammar Is Getting Worse, But It's Okay

Humans have an innate language instinct, which allows them to tackle communication on a whole other level.<ul><li>Since children learn grammar without studying it, they must have an innate capability to understand it.</li><li>There are two central principles behind all languages, which make them learnable.</li><li>You don’t have to worry about correct grammar so much, as its rules are only one part of using language correctly.</li></ul>

A Natural At Learning Languages

Humans are so innately hardwired for language that they can no more suppress their ability to learn and use language than they can suppress the instinct to pull a hand back from a hot surface.

<ul><li> Language is the biological adaptation to communicate.</li><li> There have been anthropological studies of tribes that had no contact with the larger world until the 1920s. Among those tribes, language was acquired seamlessly, without specific instruction. </li><li>The human capacity for language is termed by the author as “Mentalese.” </li><li>Humans acquired language through their biology. This innate possession of language a “Universal Grammar.”</li><li>This proclamation ran counter to the social science theories of the time, which contended that language had to be deliberately taught by adults.</li></ul>

Defining Language

The theory that language is an instinct has opened up the possibility that humans have had access to language learning for about 2.5 million years. There are specific genes and regions of the brain that develop to allow the individual to practice language.While popular media accounts claim that chimpanzees can learn American Sign Language, most data suggest that chimpanzees are not mentally wired to acquire language. They lack the language instinct that humans possess.

Our Brains Are Hard-Wired For Learning Language

This principle allows us to express anything and everything, because even though the number of words in any given language is limited, the number of combinations of words isn’t. Since we use the rules of grammar to create our own sentences, we’re not limited in how much we can express, which makes it easier to get your point across.

Infinite Use Of Finite Media

All languages are based on the same two core principles.How come we can talk so effortlessly to one another? What is it about language that makes it so easy to communicate with it? There are two forces at play here:<ul><li>The arbitrariness of the sign.</li><li>Our infinite use of finite media.</li></ul>

The Two Core Principles

You can be very much descriptively correct with your grammar, while being wrong in a prescriptive sense, just like a driver can follow the rules of physics in his car while breaking the laws of the country he’s driving in. Correct grammar is very much a relative thing, so don’t stress too much about it!

The Right Grammar Is Subjective

 We are born with an innate capability to understand languages.

The classic book on the development of human language by the world’s leading expert on language and the mind. In this classic, the world's expert on language and mind lucidly explains everything you always wanted to know about language: how it works, how children learn it, how it changes, how the brain computes it, and how it evolved. With deft use of examples of humor and wordplay, Steven Pinker weaves our vast knowledge of language into a compelling story: language is a human instinct, wired into our brains by evolution. The Language Instinct received the William James Book Prize from the American Psychological Association and the Public Interest Award from the Linguistics Society of America. This edition includes an update on advances in the science of language since The Language Instinct was first published.

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"A brilliant, witty, and altogether satisfying book." — New York Times Book ReviewThe classic work on the development of human language by the world’s leading expert on language and the mindIn The Language Instinct, the world's expert on language and mind lucidly explains everything you always wanted to know about language: how it works, how children learn it, how it changes, how the brain computes it, and how it evolved. With deft use of examples of humor and wordplay, Steven Pinker weaves our vast knowledge of language into a compelling story: language is a human instinct, wired into our brains by evolution. The Language Instinct received the William James Book Prize from the American Psychological Association and the Public Interest Award from the Linguistics Society of America. This edition includes an update on advances in the science of language since The Language Instinct was first published.

Steven Arthur Pinker is a Canadian-American cognitive psychologist, psycholinguist, popular science author, and public intellectual. He is an advocate of evolutionary psychology and the computational theory of mind.