I was asked a couple weeks ago to contribute a piece to a special series of articles in Newsweek about the future of Wi-Fi. I must admit that a fair amount of the stuff that's on the Wi-Fi horizon seems a little banal to me. It's nice to know that I will be able to swallow a camera-pill that will wirelessly send pictures of my bowels to my doctor, but it hardly cries out paradigm shift. On the other hand, I've been deeply intrigued and a little disturbed by the possibility that the next digital device to go Wi-Fi is the human brain. Here's my short essay on the subject.