Hold your horses :) We're talking about surface-level stimulation of neurons. It is huge leap to go from that to inner-level communication. Even if the physics were possible, what are the chances that the two people's neural structures would be compatible enough for a direct connection? Each person's memory at a particular region is almost certainly completely different. Would it even make sense to try to map signals in that way?
Yep there's zero chance direct communication will "just work". But with training, it seems possible. In the future primary schools will still teach standard reading and writing, but they will also teach standard thinking as a way to interface thoughts with computers in agreed-upon forms (words, voices, and images). Standard thinking will be different than everyday thinking, but it will still be as natural as speaking a thought.
