Most folks commonly assume the hat to be made of aluminum when clearly the hat is to be made of tin.

Tin is a low-melting, malleable, ductile metallic element nearly approaching silver in color and luster: used in plating and in making alloys, tinfoil, and soft solders. Symbol: Sn; atomic weight: 118.69; atomic number: 50; specific gravity: 7.31 at 20°C Re: m-w.com

The origin of the symbol Sn comes from the Latin word "stannum" meaning "tin", or its chemical symbol Sn.

Stannum is a small tin mining village on the Northern Tablelands, in the New England region of New South Wales, Australia - Re: Wikipedia

Thus the only hat capable of eliminating the threat of subversion by unknown hostile enemies engaged in mind control is to wear a hat of pure tin made by Mad Hatters from New South Wales, Australia.

Anything less is just mental masturbation.

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