About their creation? Yes as most of inventors about their invention usually

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These guys are not creators or inventors. They're hype men.

Yes, just like Elizabeth Holmes. Or Hwang Woo-suk’s stem cell cloning. Or the many “free energy” crackpots. Or the people promoting radium baths for random ailments. Or Tesla’s late-in-life claims about wireless energy, death rays, and cosmic energy. Or the myriad purveyors of “snake oil” and all manner of “tonics”. The list goes on and on.