Extrasensory perception (ESP) is the purporte ability to acquire information by paranormal means independent of any known physical senses or deduction from previous experience. The term was coined by Duke University researcher J. B. Rhine to denote psychic abilities such as telepathy, the sensing of thoughts or feelings without help from the 5 known senses, precognition, the knowledge of future events, and clairvoyance, the awareness of people, objects or events without the help of the 5 known senses. ESP is also sometimes casually referred to as a sixth sense, gut instinct, a hunch, a weird vibe or an intuition. The term implies sources of information currently unexplained by science. Popular belief in ESP is widespread, but skeptics are still not persuaded that there truly is a sixth sense because of the lack of reliable theories and information.