Sitting with this question for too long causes a certain type of vertigo. The kind that comes when you realize the ground beneath your assumptions might not be ground at all is the quiet, unsettling kind, not the dizzying kind you get from looking off a ledge. For years, scientists at the University of Portsmouth, under the direction of physicist Melvin Vopson, have been considering that question. And they think they might have figured out a way to test it, with growing seriousness.
The question is not new in and of itself. In his 2003 Oxford paper, Nick Bostrom put it in formal terms by claiming that, statistically speaking, we are most likely living inside a technologically advanced civilization if it is capable of running intricate ancestor simulations.
| Key Information | Details |
|---|---|
| Topic | Simulation Hypothesis — Scientific Testing |
| Lead Institution | University of Portsmouth |
| Key Researcher | Melvin Vopson, physicist |
| Core Theory | Second Law of Infodynamics |
| Published Research | AIP Advances (peer-reviewed journal) |
| Related Concept | Information as a Fifth State of Matter |
| Original Hypothesis Term | Simulation Hypothesis — coined by Prof Nick Bostrom, University of Oxford (2003) |
| Biological Evidence Used | SARS-CoV-2 (COVID-19) mutation patterns |
| Energy Constraint Reference | Franco Vazza, Italian astrophysicist — 2025 paper |
| Cultural Reference | The Matrix (1999), The Truman Show (1998) |
| Bostrom’s Paper | Are You Living in a Computer Simulation? — Oxford, 2003 |
| Current Scientific Consensus | Unproven — significant debate continues |
For centuries prior to him, philosophers had hinted at various aspects of this, such as Descartes’ demon, Plato’s cave, and the widespread belief that perception and truth are not exactly the same. However, Bostrom provided a framework for it. Instead of making it feel like a nightmare, he made it feel like an argument.
Vopson offers an alternative: a framework for physics. He notes something genuinely peculiar about information systems in his Second Law of Infodynamics. Information entropy tends to remain constant or even decrease toward a minimum at equilibrium, in contrast to entropy in classical thermodynamics, which, as any physics student knows, always increases in an isolated system.
It’s worth examining that contradiction. According to Vopson, this behavior isn’t coincidental. He claims that it appears precisely as one might anticipate from a system that is actively being optimized and compressed. similar to making code more effective. similar to a simulation lowering its own computational burden.
Interpretation might be a stretch. There are critics, and their papers are authentic. Every study that suggests the use of digital signatures in reality’s structure is accompanied by another that is adamantly opposed. In a paper published in 2025, Italian astrophysicist Franco Vazza presented an energy-based argument that has proven difficult to refute. It basically calculated that it would take more energy than the observable universe actually contains to simulate the visible universe in any meaningful detail.
He said it’s not really feasible, even for a dominant civilization, to turn a globular cluster’s whole stellar mass into energy in order to mimic Earth. The image of the simulators running out of money has a sort of dark comedy.
And yet. The completion of the simulation is not necessary for the counterargument. A helpful framework is provided by The Truman Show, a 1998 movie rather than the philosophy text, though they are closer than you might think. Although the world in which Truman Burbank lived was completely manufactured, it wasn’t a simulation of every atom. His experience was simulated.
It would require far less computing power than a full-detail replica to create a universe that is precisely calibrated to what a conscious observer actually sees. That particular detail is important. It implies that although the energy objection is significant, it is not always lethal.
The truly bizarre part comes with Vopson’s biological evidence. He discovered something surprising when examining the mutation patterns of SARS-CoV-2, a virus that has mutated at a rate that has left researchers reeling. In contrast to what Darwin’s theory would suggest, the mutations were not random. They seemed to be correlated in a way that reduced information entropy.
The virus was evolving, but it was evolving effectively. According to Vopson, this is proof of a more fundamental law that drives everything toward informational compression in both biological and cosmological systems. To be honest, it’s still unclear if that’s nature‘s elegance or something else entirely.
The scientific community seems unsure of how to handle all of this. It makes sense to be inclined to write simulation theory off as philosophy wrapped in equations. However, Vopson’s questions are structural rather than speculative, and his work has been published in peer-reviewed journals. There is no metaphor in the Second Law of Infodynamics. According to this proposed physical law, something must be optimizing the universe’s information load if it is truly doing so.
It’s difficult to ignore how the tone of this discussion has changed over the last few years. In seminar rooms and physics journals, what used to seem like a thought experiment for late-night dorm discussions is becoming more and more important.
That does not imply that the answer is “yes.” Neo, wake up. The universe is a code. It indicates that the inquiry has graduated. Now it has a test, or at least the start of one. Furthermore, in science, things cease to be philosophy and become knowledge when they are put to the test.
There is still uncertainty about the foundation of our assumptions. However, for the first time, people are attempting to determine its composition using instruments.
