sound for the brain

The way that all humans in part develop their brains and learn to communicate with the rest of the world is aural and verbal. The vibrations of the spoken word must affect the brain of a child in many very complex ways which I personally know very little about from the biological / medical aspect. But hearing language - the ways that the actual tones with the vibratory highs and lows are registered within the brain of a human must have a massive impact before and above the actual recognition of what the word means or is associated with in the physical world.

So I wonder what the increasing use of the internet means in terms of the evolution of the human race. The way in which animals adapt to changes in their environment by either gaining new facilites to cope or by losing old ones because they are no longer needed is somthing we all recognise and accept. So what will the increasing loss of aural stimulation mean for the future? I wonder if our brains are going to start adapting and sending signals to our body in which it communicates less of a need for the ears? or the mouth? I mean, I know thats an extreme example - but at some stage along the way we stood upright (or whatever - you get the picture).

In more spiritual terms, the German (or Austrian - not sure) anthrosophist Ruldolf Steiner argues that positive vibrations, especailly those from the spoken words of ones family memebers, affects the healthy development of a childs vital organs. The brains obvously being considered the most important organ in the body. Whether or not you want to take the spiritual bent or not is irrelivant, as its clear that spoken language developes the brain.

So back to my question of what this means in evolutionary terms. What you reckon?