At one point in our evolution, humanity, or our immediate progenitors, gained the ability to read minds.
This, of course, caused great chaos and violence: for I assume that humanity would take advantage of this ability by killing everyone we didn’t like. So we then created full brain encryption. Our thoughts were now pure random noise to everyone else.
In the passing years, we have forgotten about this telepathic ability because we could never find out a way to defeat this encryption.
Yet, there are those uncanny times when you seem to have the ability to read the mind of someone close to you. This is not mere accident, nor is it just because you can “read” their actions.
You actually have decrypted small parts of their thoughts by using partial encryption codes.