Third, the cascade also highlights the neural advantages of high emotional granularity, the phenomenon (described in chapter 1) of constructing more precise emotional experiences. When your brain constructs multiple instances of “Happiness” at seeing Uncle Kevin, it must sort out which one best resembles your current sensory input, to become the winning instance. This is a big job for your brain with some metabolic cost. But imagine if the English language had a more specific word than “happiness” for feeling attachment to a close friend, such as the Korean word jeong (정). Your brain would
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