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by forgotmypw16 2242 days ago
The way I see it, in the ancient world, PTS"D" served a purpose... If you saw "some shit" like your tribesmate getting mauled by a bear/tiger, it was helpful to your survival to be on high alert if you ever encountered a situation similar to the one where that happened. The complex of stimili was imprinted to a certain synapse pathway, and anytime you felt like you were in the same situation as before, you would want to be on extra-high-alert fight or flight mode.