"The effect of suggestion is due to the release of an unconscious dynamic,
and the more unconscious this is, the more effective it will be.
the split between conscious and unconscious increases the danger of psychic infection and mass psychosis.
With the loss of symbolic ideas the bridge to the unconscious has broken down.
Instinct no longer affords protection against unsound ideas.
Rationality without tradition and without basis in instinct is proof against no absurdity. "
Jung, Aion
@holon42 Instinct has never been protection against unsound ideas. Until people learn to properly understand their instincts, including when to follow them and when to deny or reroute them without making a hash of it, they'll be at the mercy of unintelligent forces.