Language would have evolved first as an internal object, a kind of "language of thought" (LOT), with externalisation (hence communication) an ancillary process. I can't review here the strong and growing evidence to support this conclusion, but I have elsewhere. There are ample reasons why having a LOT would confer selectional advantage: the person so endowed could plan, interpret, reflect, etc., in ways denied to others.
Noam ChomskyIn fact, it was stated early in the first Bush [presidency], Bush I, in one of their documents they pointed out in the future, US wars are going to be against much weaker enemies. And they have to be won quickly and decisively before a popular reaction develops. And Iif you take a look, that's what's done. Look at Panama, for instance, over a couple of days; and Kosovo, no American troops.
Noam ChomskyIn fact, it's pretty dramatic when you get to 1975, very revealing, the [Vietnam] war ends. Everybody had to write something about the war, what it meant. You also had polls of public opinion, and they're dramatically different.
Noam ChomskyThe most extreme types, like Murray Rothbard, are at least honest. They'd like to eliminate highway taxes because they force you to pay for a road you may never drive on. As an alternative, they suggest that if you and I want to get somewhere, we should build a road there and charge people tolls on it. Just try generalizing that. Such a society couldn't survive, and even if it could, it would be so full of terror and hate that any human being would prefer to live in hell.
Noam Chomsky