Where did the phrase tin foil hat come from?

This was first coined by Julian Huxley, In the story, the protagonist resists mind control by wearing a hat made of metal foil.

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The Tinfoil Hat Society

A tin foil hat is made of aluminium foil, often worn in belief that it shields the brain from electromagnetic fields, mind control, and mind reading.

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Origin of the Term 'Tin Foil Hat

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