Malcolm Gladwell opens with 'thin-slicing' — the brain's capacity to make surprisingly accurate snap judgments from very limited information, faster than deliberate analysis could process the same situation.

Examples he draws on:

• Art experts detecting a forged sculpture was fake within seconds, before conservators' months-long scientific analysis confirmed it
• Marriage researchers predicting divorce likelihood from brief clips of couples arguing
• Emergency room doctors making faster, more accurate triage decisions with less information than more deliberate protocols required

Gladwell frames this not as luck but as real, trainable pattern-recognition — expertise compressed into rapid, largely unconscious processing.