Amount of information in visible universe quantified


Share post:

Researchers have long suspected a connection between information and the physical universe, with various paradoxes and thought experiments used to explore how or why information could be encoded in physical matter. The digital age propelled this field of study, suggesting that solving these research questions could have tangible applications across multiple branches of physics and computing.

Amount of information in visible universe quantified
Artistic representation of an informational digital univers
[Credit: Pixabay]

In AIP Advances, from AIP Publishing, a University of Portsmouth researcher attempts to shed light on exactly how much of this information is out there and presents a numerical estimate for the amount of encoded information in all the visible matter in the universe — approximately 6 times 10 to the power of 80 bits of information. While not the first estimate of its kind, this study’s approach relies on information theory.

“The information capacity of the universe has been a topic of debate for over half a century,” said author Melvin M. Vopson. “There have been various attempts to estimate the information content of the universe, but in this paper, I describe a unique approach that additionally postulates how much information could be compressed into a single elementary particle.”

To produce the estimate, the author used Shannon’s information theory to quantify the amount of information encoded in each elementary particle in the observable universe as 1.509 bits of information. Mathematician Claude Shannon, called the Father of the Digital Age because of his work in information theory, defined this method for quantifying information in 1948.

“It is the first time this approach has been taken in measuring the information content of the universe, and it provides a clear numerical prediction,” said Vopson. “Even if not entirely accurate, the numerical prediction offers a potential avenue toward experimental testing.”

Recent research sheds light on the ways information and physics interact, such as how information exits a black hole. However, the precise physical significance of information remains elusive, but multiple radical theories contend information is physical and can be measured.

In previous studies, Vopson postulated information is a fifth state of matter alongside solid, liquid, gas, and plasma, and that elusive dark matter could be information. Vopson’s study also included derivation of a formula that reproduces accurately the well-known Eddington number, the total number of protons in the observable universe.

While the approach in this study ignored antiparticles and neutrinos and made certain assumptions about information transfer and storage, it offers a unique tool for estimating the information content per elementary particle. Practical experiments can now be used to test and refine these predictions, including research to prove or disprove the hypothesis that information is the fifth state of matter in the universe.

Source: American Institute of Physics [October 19, 2021]

Support The Archaeology News Network with a small donation!



Related articles

Gas clouds whirling around black hole form heart of distant astronomical object

In 1963, astronomer Maarten Schmidt identified the first quasi-stellar object or "quasar," an extremely bright but distant object....

Part of the universe’s missing matter found

Galaxies can receive and exchange matter with their external environment thanks to the galactic winds created by stellar...

Space circles are proof of a pre-big bang universe?

Ring-like patterns in the sky could be ghostly imprints of a universe that existed before the big bang,...

Researchers discover thin gap on stellar family portrait

A thin gap has been discovered on the Hertzsprung-Russell Diagram (HRD), the most fundamental of all maps in...

Evidence of life on Mars could come from Martian moon

A mission to a Martian moon could return with alien life, according to experts at Purdue University, but...

Wet and Mild: Researchers take temperature of Mars’s past

Researchers at the California Institute of Technology (Caltech) have directly determined the surface temperature of early Mars for...

Peering into a galaxy’s dusty core to study an active supermassive black hole

Researchers using NASA's upcoming James Webb Space Telescope will map and model the core of nearby galaxy Centaurus...

SpaceX Dragon docks with ISS In spaceflight first

The International Space Station's Expedition 31 crew grappled and attached SpaceX's Dragon capsule to the space station Friday....