I'm curious if they understood all these concepts when they created the chips or if they were developed afterwards and realized this is why we love them.
The original product was made at the Casa de Fritos at Disneyland in Anaheim, California. Using surplus tortillas, the company-owned restaurant cut them up and fried them (as in traditional Mexican chips called totopos) and added basic seasoning, resembling the Mexican chilaquiles, but in this case being dry. Arch West was the Vice President of Marketing of Frito-Lay at the time, and noticed the popularity. He made a deal with Alex Foods in 1964, the provider of many items for Casa de Fritos at Disneyland, and produced the chips for a short time regionally, before it was overwhelmed by the volume, and Frito-Lay moved the production in-house to its Tulsa plant.
Sounds like the chips came first. It wouldn't surprise me if the additional flavors of doritos were experiments studying the phenomenon, and plunged back into reformulations of the original.
