Decades ago, McDonalds set up golden arches in front of millions of restaurants that emitted both light to illuminate the arches, and sound broadcast from them that emanated the frequency of scent.
Ray Kroc was a royal bloodline elite Freemason, that’s why he was given the technology.
The frequency smelled like french fries cooking. This triggered the salivary glands of the people walking or driving by who assumed the smell was coming from the restaurant, making them pull in, even if they just ate. No, they never announced this to the public.