According to inflation theory, those regions were when much cozier and got to know each other quite well, before inflation ripped them apart.Theres another potential consequence of inflation: It might not be done. As all of these theories are based on hypothetical designs of the extreme physics of the early universe, its too early to tell which of the theories– if any– are correct.Physicists think that eternal inflation is generic, implying a repercussion of many, if not all, designs of inflation. An infinity of yous doing this precise very same thing.But we can just state the multiverse is most likely if everlasting inflation is certainly generic (that is, a typical function of many, if not all, inflation designs), which is exactly what a group of physicists claims in a current paper, published to the preprint database arXiv and submitted to the Journal of Cosmology and Astroparticle Physics. They put a large number of inflation models through a grinder, varying the types of designs and the design criteria, counting which ones were a one-and-done affair and which ones led to eternal inflation and a multiverse.Their response: Its complicated.First off, they found that everlasting inflation wasnt almost as common as originally believed. They discovered that numerous practical inflation designs (“viable” here means they didnt obviously oppose observations) didnt lead to a forever inflating scenario.However, the scientists discovered that its hard to even get a handle on measuring the “commonality” of something like eternal inflation, because we dont have a good grasp of inflation designs and how they work.
According to inflation theory, those areas were once much cozier and got to understand each other quite well, before inflation ripped them apart.Theres another prospective repercussion of inflation: It might not be done. They put a large number of inflation designs through a mill, varying the types of models and the model parameters, counting which ones were a one-and-done affair and which ones led to everlasting inflation and a multiverse.Their answer: Its complicated.First off, they discovered that eternal inflation wasnt nearly as typical as originally thought. They found that numerous practical inflation models (“viable” here implies they didnt clearly oppose observations) didnt lead to an eternally inflating scenario.However, the scientists found that its tough to even get a deal with on determining the “commonness” of something like eternal inflation, since we dont have a great grasp of inflation designs and how they work.