A “gut feeling” is an automatic, cognitive, short-cut that provides a crude, organic, meta-analysis of the culmination of one’s entire life experience relating to a given concept.
In the course of a lifetime, you have trillions of experiences covering innumerable concepts. Some of these experiences are available to the conscious mind, but most are not. It would be impossible to function if you had to process your lifetime of experiences every time you had to answer a question or make a decision. So, the mind provides a short cut called the “gut feeling.”
If I ask, “Do you like raisins?” the answer will lie in an overview of every life experience you have ever had with the concept called, “raisin.”
…raisins are dehydrated grapes
…the dancing California Raisins
…raisin bran cereal
…raisins look like flies
…raisins are high in antioxidants
…as a kid, I threw up after eating a box of raisins
…raisins are sweet
…raisins have a funny texture
…I got raisins in my lunchbox when I was in grade school
…raisins smell bad
…and on and on and on and on
But, since filtering through these millions of experiences would be impossible and impractical, your mind makes a snap shot using the most dominant, overshadowing emotion related to the concept called, “raisin.” This provides your gut feeling and your answer… “No, raisins are gross.”
The gut feeling is necessary to navigating the complex terrain of human life. Without it, we would be paralyzed. However, it is also the fundamental cognitive error that interferes with human advancement. Our nature, like all animals, is to accept gut feelings as “truth.” If I approach a squirrel with the intention of giving it a walnut, the squirrel’s gut feeling may be that I am a threat, so the squirrel runs away. The truth is that I intended to help the squirrel by giving it food. Gut feelings are not truth. Truth is based in fact and possess objective reality.
So, if I am interested in finding "truth," then I must understand that my gut feeling is an extremely fallible resource completely dependent on my very limited and unique fund of life experiences. To find “truth,“ I must test my gut feeling against objective litmus’ like logic, mathematics, physical properties, etc. The gut feeling is a necessary place to start, but it can be a foolish place to end.
The ability to override “gut feelings” is the characteristic that enables the human to operate beyond the confines of biological and environmental programming. Every animal on the planet is a slave to gut feelings. Throughout the majority of human history, we have operated exactly like every other species in this respect. However, the advent of logic, mathematics, and the scientific method, has provided a means for humans to break the bonds of our animal nature and rise above superstition and intuition. It is a tragedy that so few take advantage of this magnificent opportunity.