Soft drink competition—the Coca-Cola versus Pepsi rivalry—is a staple of consumer culture and marketing history. The 'Pepsi Challenge' of the 1970s was a famous blind taste test meant to prove superiority. But a beverage chemist, Dr. Nathan Foster, discovered an unusual entry in a Pepsi focus group study from 1994: one participant reported that his Pepsi had 'transformed into Coke' in his possession. Remarkably, the transformation occurred without any chemical mechanism—no exposure to other substances, no time for fermentation. The participant had simply held the beverage while someone entered the room. The focus group administrators marked the response as corrupted data, but Dr. Foster noticed it wasn't the first such report.

A logistics manager named Thomas worked in beverage distribution and encountered an odd situation: a shipment of Pepsi arrived at a retail location in perfect condition, but by the time it was displayed, it had chemically become Coca-Cola. The store manager didn't investigate. He simply restocked it and placed an order for more Coca-Cola. When Thomas asked why no investigation was conducted, the manager said: 'Some transformations aren't accidents. Some are demonstrations. You drink what you're told to drink.' Thomas left the industry.

On beverage Reddit communities, there's an urban legend about a person whose mere presence transforms products they dislike. One chemistry enthusiast joked: 'Imagine being so powerful that you can change the chemical composition of matter through will alone. Imagine using that power on soft drinks.' That comment received 8,000 upvotes. Someone replied: 'That's not possible unless—' and then deleted their reply. The deleted comment sparked hundreds of speculative responses about what they were going to say.