CAIRO — For years, residents would occasionally spot Preston Nichols around town — a tall, eccentric figure best known nationally as the co-author of The Montauk Project: Experiments in Time, the controversial 1992 book that helped launch one of the most enduring conspiracy theories of the modern era. Locally, however, he was simply another unusual character who had settled into Greene County life.

Dan Lactinola, a longtime Cairo resident who worked for many years at the former Great American supermarket, remembers seeing Nichols regularly.

“He would always be wearing a tin foil hat,” Lactinola recalled with a laugh.

To outsiders, Nichols became synonymous with tales of psychic warfare, time travel, government experiments, and interdimensional portals. But in Cairo, he was also a neighbor — one whose rural compound became something of a curiosity tucked away among the woods and back roads of the town.

This week marks what would have been Nichols’ 80th birthday. Born May 24, 1946, on Long Island, he eventually left the bustle of the island behind and relocated to Cairo, seeking privacy and space for his increasingly unconventional pursuits.

There, Nichols established what followers often described as a “compound,” filled with aging vacuum-tube transmitters, salvaged electronics, radios, and strange experimental equipment that looked more at home in a Cold War bunker than a Greene County hillside. Visitors came from across the country to hear him lecture about the alleged secrets of Camp Hero at Montauk Point — an abandoned military installation at the center of the infamous “Montauk Project” conspiracy.

Nichols claimed the U.S. government had conducted secret experiments involving mind control, psychic abilities, teleportation, and portals into other dimensions. Alongside collaborator Peter Moon, Nichols blurred the line between science fiction and claimed memory, openly encouraging readers to decide for themselves what was real.

“Whether you read this as science fiction or non-fiction you are in for an amazing story,” the pair famously wrote in the opening pages of their first book.

Skeptics, including noted UFO researcher Jacques Vallée, dismissed the stories as unverifiable and highly questionable. Yet the mythology surrounding Nichols only grew larger over time.

And eventually, it reached Hollywood.

When Netflix released Stranger Things in 2016, audiences were captivated by its story of secret government labs, psychic children, sensory deprivation experiments, and terrifying portals to another dimension known as the Upside Down. What many viewers did not realize was that the series was directly inspired by the Montauk mythology Nichols helped popularize.

In fact, the show’s original working title was reportedly "Montauk", and early drafts were set on Long Island rather than fictional Hawkins, Indiana.

The parallels are unmistakable.

The alleged “Montauk Boys” — children supposedly subjected to psychic experiments — became Eleven and the test subjects of Hawkins Lab. Rumors of government mind-control research echoed through the show’s shadowy laboratories. Stories of portals opening into other realities transformed into the now-iconic gateway to the Upside Down.

What Nichols once described in fringe books and late-night radio interviews on Coast to Coast AM became, decades later, the DNA of one of Netflix’s most successful series.

Back in Cairo, however, the mythology often felt far more grounded and local.

Nichols’ property became a destination for paranormal investigators, curiosity seekers, and documentary filmmakers. His home and “throne room” were later featured prominently in "Montauk Chronicles", the 2015 documentary by filmmaker Christopher P. Garetano. The film went on to win Best Documentary at New York City’s Philip K. Dick Film Festival and further cemented Nichols’ place in conspiracy culture.

Yet for many in Greene County, the memories remain far simpler and far more human.

They remember seeing him in stores. They remember the unusual visitors heading up his driveway. They remember the strange equipment stacked across his property off of Main Street. And they remember the man in the tin foil hat who quietly became part of the town’s modern folklore.

Nichols remained in Cairo until his death in 2018.

Today, while debates over the truth of the Montauk Project continue online and across podcasts, documentaries, and television specials, Nichols’ story also belongs to a smaller and more intimate place: the mountain town where one of America’s strangest legends chose to make his home.