the.com/gut feeling

Your brain finishing a math problem and hiding the equation from you.

means A strong instinctive sense that something is true or wrong, arrived at without conscious reasoning.

from Rooted in the old idea that emotion and instinct live in the belly, not the head — 'gut' has meant the seat of raw feeling since at least the early 1900s in English, building on much older associations between bowels and courage or dread (think 'visceral,' from Latin viscera, the inner organs). The exact phrase 'gut feeling' is a 20th-century coinage, popularized through everyday and later psychological speech, but it leans on this ancient gut-as-truth-teller intuition rather than any single traceable origin story.

actual source
pattern recognition from experience, not magic
body link
gut has 500 million neurons, its own nervous system
speed
faster than conscious reasoning, not always more accurate
best used
expert domains, worse in unfamiliar situations
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