It may sound like it comes straight from science fiction but is very much becoming reality. How cool is this!!! A 'telepathy machine' that reconstructs speech from brain waves! I quoted the article's introduction below to give you an idea of how amazing this is!
"When you read this sentence to yourself, it's likely that you hear the words in your head. Now, in what amounts to technological telepathy, others are on the verge of being able to hear your inner dialogue too. By peering inside the brain, it is possible to reconstruct speech from the activity that takes place when we hear someone talking."
-- Telepathy machine reconstructs speech from brain waves - New Scientist