[krismusic]

, wouldn't it also be possible to increase it? I'm not talking about just playing loud noise until your ears get damaged, but actually messing with the way the ears and the brain communicate to each other. What I would additionally like to imply, is that if we determine what exact sounds need to be played, and at what times, we might be able to record tracks into our heads. In other words, what if we could hear a song without actually listening to it?

That's what I am waitng for! I seriously think it is possible that hardware could become redundant. I have signed up already for the iBrain. Although some will claim that the Sennheiser IB 8000 is a far better implementation.