Direct mind-to-mind communication, as hard as that is, will not be the primary challenge. Safety and defensive mechanisms will be far more challenging. We alrea

Direct mind-to-mind communication, as hard as that is, will not be the primary challenge. Safety and defensive mechanisms will be far more challenging. We already have invasive techniques that use nothing more than images, sound, text. Direct mind access would make techniques that were far more dangerous and insidious.