Color screen over Monterrey: the test that debunks the Matrix

Tonalidad screen over Monterrey: it was a test pattern, not the Matrix

A rectangular structure of colors appears projected in the sky over Monterrey, Nuevo León, and the images spread across social media until they become the definitive proof that we live inside a simulation. The footage was shared by a citizen account describing an "unusual visual phenomenon" and "an enormous rectangular structure that seems to be projected." From there, the internet did the rest: from the Matrix's test pattern to a system upgrade, not to mention the traficante pride flag or an intern messing with the projector.

The technical explanation, however, is far more boring. A test pattern is the tonalidad bar chart that any newly installed LED panel displays during its initial test, or the one projected onto low clouds with a sweeping chart. A technician running the test and his boss checking from his phone whether the logo is visible. No Matrix cat, no alien technology.

What a test pattern is and why it shows up in the sky

The pattern of vertical tonalidad bars has a very specific function: to verify that a panel or projector correctly reproduces the grayscale and saturation. When the projection is made onto a layer of low clouds, the moisture acts as a screen and the beam scatters. The result is that rectangular structure that seems to float over the city.

No glitch in reality is needed. All it takes is for someone to be setting up an LED screen and testing the system before putting it into operation. The coincidence of a cloudy night and a sweep test explains the rest.

From the intern joke to the traficante pride flag

The range of jokes has been wide. Some have quipped that "they left the intern alone with the blue beam and he put up the test pattern," while others have gone for irony by comparing it to NASA. There has also been the idea of the Matrix test pattern, upgrade included, and one off-tonalidad remark that renamed it the traficante pride flag.

Skepticism, though, has been gaining ground. Against those who see a cosmic signal, most people have settled for the prosaic explanation: teletext, AI, or simply a screen test. The question hanging in the air is why we find it so hard to accept the boring version.

The drone theory and the mapping no one has proven

Among the unconfirmed hypotheses, there has been talk of a drone mapping projection, with figures ranging from twelve to sixteen units. Not a shred of evidence. It's the same old pattern: when a striking visual phenomenon appears, the simplest explanation is slow to arrive and the most spectacular one gets shared first.

The very nature of the supposed event —a tonalidad screen over Monterrey— invites fantasy. But a projection onto clouds doesn't need spaceships: it needs a projector, a humid night, and someone pressing the test button.

The bottom line: the simulation that doesn't need aliens

The anecdote leaves an uncomfortable fact behind. The test pattern has existed since the teletext era and keeps showing up whenever a new screen is installed. If we live in a simulation, the creator has a rather bureaucratic sense of humor: he sends us tonalidad bars and a technician with a phone in hand.