Just a thought, since evolution is an ongoing process people may eventually develop organs more advanced than the brain. Not all animals have brains, and perceive through instinct. That there are dimensions beyond intelligence. Similar to how the perception of the dimension of sight is beyond the dimension of sound. In a way stem cells are more advanced than neurons.
Back in the old days, long before I was born, salted crisps - or potato chips, for you yanks - came unsalted and had a little pouch of salt to manually shake on it. Of course, things are more efficient now, but Walker's still brought back the old 'Salt 'N' Shake' style a couple years ago. Dunno why, but if I had to guess, I'd say it's because the nostalgia crowd were getting salty.