In roughly three and a half centuries, the sheer volume of digital information on Earth could rival the number of atoms that make up the planet, according to a physicist who argues that data should be treated as a distinct form of matter. The projection, which paints a stark picture of unchecked data growth, comes from Melvin Vopson of the University of Portsmouth, who published his analysis in the journal AIP Advances.
Vopson's work centers on what he calls the mass-energy-information equivalence principle, a theoretical bridge that connects several established physical concepts. He draws on Einstein's theory of general relativity, which links mass and energy, and pairs it with the work of physicist Rolf Landauer, who proposed that there is a fundamental energy cost associated with information processing. By merging these ideas, Vopson argues that digital bits—the binary 1s and 0s that underpin all digital data—possess mass and should be considered a fifth state of matter, alongside solids, liquids, gases, and plasmas.
The implications are staggering. According to Vopson's calculations, if current growth trends continue, digital information could account for half of Earth's mass by the year 2245, a scenario he describes as an “information catastrophe.” That point, he notes, would make the continued expansion of digital infrastructure physically impossible to sustain.
Vopson's claims extend beyond the terrestrial. In an interview with ZME Science, he suggested that dark matter—the mysterious substance thought to hold galaxies together—might itself be composed of information. While such ideas remain highly speculative, his broader point about the environmental and logistical pressures of data growth is grounded in observable trends.
“Everyone should find this interesting because the projections show that we are going to produce so much digital content in the near future that the number of bits produced would equal all the atoms on Earth,” Vopson told ZME Science. He framed the issue as a “wake-up call” for big data industries, internet giants, high-tech companies, and energy and environmental researchers, calling it an “invisible crisis” because the problem is not yet visible in daily life.
Vopson also noted that information manifests in many forms—analog, biological (like DNA), and digital—but argued that the binary digital bit is the most fundamental because it can represent or duplicate all other forms. This universality, he contends, makes the digital bit the logical basis for considering information as a physical entity.
Why the Data Growth Curve Matters
The practical concerns raised by Vopson are not merely theoretical. The energy required to power and cool data centers, the physical space needed for storage, and the environmental impact of manufacturing and disposing of electronic components are all growing concerns. While Vopson's specific predictions about mass conversion are far outside mainstream physics, the underlying question of how to manage exponential data growth is a pressing one for industries and policymakers.
His paper in AIP Advances adds a provocative layer to the discussion, but even skeptics acknowledge the value of highlighting the sustainability challenges posed by the digital age. As Vopson put it, “Where do we store this information? How do we power this?” Those questions, he says, are already urgent, even if the full consequences are still decades away.
The debate over whether information is matter is likely to continue, but the more immediate takeaway is clear: the digital universe is expanding at a pace that demands attention. Whether or not bits ever tip the scales, the energy and resource demands of our data-driven world are already a tangible reality.
