“

In the earliest days when we were evolving, there were plenty of dangers around, and those dangers were directly experienced, they were threats that we faced directly from threatening creatures or other tribes, it was all very direct and concrete. So these reactions based on feelings were very beneficial in helping us act quickly and to recognize friend from foe, it was us against them, like if you heard a sound in the bush that might be a dangerous animal, you didn't stop to reason about what was causing the sound -- was it really a dangerous animal ? -- you just accepted the fact that it sounded scary and you got out of there. You moved fast. So our survival depended on testing your emotions and behaving quickly, and acting according to those feelings.