As far as I can tell it's a hoax. When I phoned to ask some questions about the technological basis I got a lot of conspiracy about salt-based water softeners and a lot of dodging of my direct question as to what technology THEY are using.
He also proceeded to tell me how fluoride doesn't prevent tooth decay among other hilarious parts of the conversation.
All I could think was that passing a psychological exam was obviously not part of the hiring requirements because this guy was a certifiable loon!
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