Psychics Humans in the main do not have a great deal of psychic ability, which is simply a combination of telepathy and common sense. Most humans are personally acquainted with a situation that had overtones of psychic interplay, or have a close friend or relative who relays such a story. Someone knew that revenge was being plotted and the means being planned. Someone knew that a package was in the mail and what it contained. Someone sensed that an airplane was in danger and warned a potential passenger to change their plans.
Psychic ability runs in families, and for a simple reason.
Telepathic ability as well as common sense are based on the structure of the brain, and this is for the most part genetic. For those situations where the psychic simply had to be aware of an existing situation, one known to other humans, the answer lies in telepathy. Any fact known to another human can be sensed by a telepath. Psychics are most sensitive to those they know, or those who may be thinking about situations they care about, or those who may be thinking about the psychic themselves. This accounts for the majority of psychic situations, where a personal connection of some kind is present.