Can life exist in 2D? The physics of a 2D Universe
The laws of physics allow for the existence of a life-sustaining two-dimensional universe, according to new research.
Since we live in three dimensions, it is difficult for us to imagine universes with more or fewer dimensions. therefore scientists have spent a lot of time and effort trying to figure out if life can exist in them. Their descriptions also include time, which we perceive as a 3 + 1-dimensional universe..
Many physicists have concluded that in more than three dimensions, Newton’s laws will be susceptible to problems with tiny perturbations., and this will prevent the formation of orbits similar to the planets around the sun. So this option is eliminated. But what about a 2D world?
Most researchers believe that in a two-dimensional world, gravity will make it difficult or impossible for systems to form that support life. However, James Scargill, a physicist at the University of California, believes that the scientific community needs to rethink this argument. In his research, he used physical formulas to show the possibility of the existence of gravitational fields and the necessary complexity in a 2D universe..
He began his research by looking for two-dimensional networks that have the same characteristics as and a neural network. He then showed that two-dimensional networks can be built in a modular fashion, overcoming the problem of crossing boundaries, and can demonstrate criticality. Thus, he points to the possibility of the existence of a universe 2 + 1, supporting life – at least according to the laws of physics.
We also previously reported that NASA will start look for technical signals of extraterrestrial origin.
text: Ilya Bauer, photo: Shutterstock