Telepathy or "mind reading" has been the subject of many science fiction stories and comic books for a long time and is often a power associated with the gods. The first scientific studies were started in London in 1882 by the Society for Psychical Research. Here in America, the CIA also began its own studies of telepathy in 1972 having no success.
One of the major obstacles in the research is that our brains are far more complex than any computer and aren't fully understood by scientists. Limited data can be currently analyzed using MRI machines, but we are far off from actually being able to transmit our thoughts via current technology. In Michio Kaku's Physics of the Impossible, he labels telepathy as a class I impossibility, meaning that it is "impossible today but does not violate the current laws of physics. So they might be possible in this century, or perhaps the next, in modified form."
Kaku, Michio, Physics of the Impossible. Anchor Books, NY 2008
Future of Education
15 years ago