Science fiction has hinted at such transitions, but they may be nearer at hand than you might presume, here in our market totalitarian culture. Check out the new brain substitute from your friends at Amazon.com:
Television, of course, could very justly be seen as another brain substitute. But it, at least, is generally used with the awareness of its idiot boxery. This Orwellian device invites its smiling victims to congratulate themselves for how cutting edge it is to surrender your last few scraps of self-directed inquiry and action over to the corporate behavior-programming/commodity-pushing nexus.