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Ordinary people usually learn about a crisis from the news, not from watching other people’s travel plans. One programmer built a website based on a very different idea. Kyle McDonald created a tool that tracks more than 31,000 private and business jets, watching for a sudden surge in flights that could mean the wealthy already know something is wrong. He calls it the Apocalypse Early Warning System, and it treats billionaire travel patterns as a possible early alarm bell.
The Idea Started With a Threat and a Suspicious Spike in Flights

McDonald did not build this system out of nowhere, a specific moment triggered it. He says he noticed unusual private-jet activity around early April, right as President Donald Trump made an incendiary threat involving an entire civilization. That timing raised a question in McDonald’s mind: were wealthy, well-connected people already reacting to information the public had not seen yet? He launched the Apocalypse Early Warning System publicly on April 30.
A Second Clue Came From a Billion Dollars in Prediction-Market Bets

One suspicious pattern was not enough to convince McDonald alone. About two weeks after the jet spike, he read reports describing roughly $1 billion in prediction-market wagers placed with unusually precise timing around the possibility of war with Iran. Combined with the earlier flight activity, that detail deepened his suspicion that insiders were positioning themselves financially and physically ahead of events the general public had not yet grasped.
The System Pulls Real Flight Data, Not Guesswork

This is not a website built on speculation alone. McDonald’s tracker pulls information from public sources, including the Federal Aviation Administration’s aircraft registry and ADS-B Exchange, which collects radio signals broadcast directly by aircraft. Those records feed a database following more than 31,000 private and business jets worldwide. The system compares how many of those jets are airborne right now against historical patterns recorded during similar periods in the past.
A Five-Level Alarm Scale Tries to Filter Out Ordinary Noise

Not every busy travel day gets flagged as a warning sign. The site assigns global private-jet activity a level between one and five, with level five reserved for spikes measuring five standard deviations above the normal baseline. That high bar exists specifically to prevent holidays, major sporting events, or routine travel surges from repeatedly triggering false alarms. Users can watch the level update live or sign up for text and email alerts when it spikes.
McDonald Says the Motivation Started With Government Insiders

McDonald traces his motivation back to a specific frustration with how insiders behave during a crisis. “I created it after it became clear that insiders in the US government were making personal profits from information related to war plans,” he told the Daily Mail. That belief, that people with early access to sensitive information sometimes act on it quietly, shaped the entire premise behind tracking jets instead of official statements.
Even the Creator Admits the Passenger Numbers Are Rough Estimates

McDonald is upfront about one major limitation built into his own tool. The website estimates passenger counts by matching aircraft models to their published maximum seating capacity, then scaling any missing data by known averages. “The max-people estimate is intentionally rough,” the site states. “It is a maximum seat estimate, not a passenger manifest.” On the day it tracked 869 aircraft in flight, it estimated a theoretical capacity of nearly 11,000 people, not an actual headcount.
McDonald Insists This Tool Cannot Actually Predict Doom

Building a system called an apocalypse tracker does not mean its creator believes it can forecast disaster. McDonald has repeatedly stressed that even a level five reading would not prove billionaires were fleeing an impending catastrophe. Ordinary events can also produce short, unusual surges in private aviation. He has said the alert should be read “alongside other public signals,” including prediction markets, financial activity, and actual news reporting, rather than trusted on its own.
The Site’s Biggest Spike So Far Lined Up With a Real Military Strike

Despite all the caveats, the tracker has already produced results that got McDonald’s attention personally. Its highest recorded spike so far reportedly came on the day Iran launched a large-scale strike against U.S. and Israeli targets, a moment when private-jet activity jumped noticeably above normal patterns. McDonald described that particular reading as unsettling to witness in real time, even while continuing to caution that a spike alone proves nothing definitively about what is actually happening.
For Now, It’s an Experiment, Not Proof of Anything

McDonald built something that sits somewhere between a data project and a piece of conceptual art, and he does not pretend otherwise. The system cannot confirm that billionaires know a crisis is coming, and it was never designed to. What it can do is add one more publicly visible data point to a picture that usually stays hidden from ordinary people entirely. Whether that data point ever means anything remains, by its creator’s own admission, unproven.
