Why does the new cosmic theory make Stephen Hawking angry?

Controversy over cosmic inflation theory made Stephen Hawking and 32 leading scientists angry.

In response to a study questioning the accuracy of the popular theory of the Big Bang universe, physicist King Stephen Hawking and many of the leading scientists on the universe were very angry and worked together. Draft a letter expressing your views, according to many recent foreign news sites.

Accordingly, in February this year, three Anna Ijjas scientists, Paul J. Steinhardt and Abraham Loeb published an article criticizing the theory of inflation about the expansion of the universe, an addition of the Big Bang theory. (Big Bang) is widely accepted and included in school textbooks in many countries. They came up with another option to explain the origin and evolution of the universe: Big Bounce theory - big bouncing or big oscillation.

Stephen Hawking was angry with new theories about the universe.

In the study published in Scientific American entitled "Pop goes the universe," the authors argue that the latest measurement results of cosmic microwave background radiation (cosmic microwave background-CMB , the type of light emitted) after Big Bang 13.7 billion years ago) has caused concerns about cosmic inflation theory.

According to the authors, although it can be used to predict almost all results, this CMB does not have the appearance of two common elements in cosmic inflation: the pattern of temperature and gravitational variation. primitive.

This suggests that "astronomers should reassess the model being supported and consider new ideas about how the universe began" , the original text cited by IB Times.

CMB data is suspected as data drawn by the Planck observing satellite and published at the European Space Agency press conference. Previously, it seemed that the results were detailed. The most up-to-date Planck draws on inflation theory.

New research on the universe with the title: Pop goes the universe.

For the above reasons, after studying CMB data, the three authors were immediately skeptical and assumed that inflation theory had serious theoretical background issues."The Planck data has rejected the simplest inflation models and made the perennial fundamental problems of this theory worse."

The authors write that "there is no" evidence to suggest that what happened 13 billion years ago was an explosion or oscillation, and inflation advocates are "encouraging the idea of ​​a kind. non-experimental science ".

According to Gizmodo, this study was not satisfied by the top 33 scientists in the world, including Stephen Hawking and pioneering authors in inflation theory, Alan Guth - astrophysicist from MIT, David Kaiser. (MIT), Andrei Linde (Stanford), Yasunori Nomura . (list of 33 scientists who have 4 Nobel Prize winners).

Accordingly , "when it comes to the theory that cosmic inflation is outside the scientific method, IS&L (the three authors above) not only rejects the research of all authors of this letter but also rejects the mechanical part. The scientific community's version " and " the effort of a number of major international collaborations have clearly shown that inflation can not only be tested but also the subject of many important trials and until now overcome all tests ".

The authors write that "there is no" evidence that shows what happened 13 billion years ago.

In the criticism letter also published in the scientific journal Scientific America, scientists continue to raise data and test to reinforce inflation theory that has existed for more than 35 years. They argue that this theory is still being developed and gives many reasons why this is the most feasible theory today. And the following paragraph is the most shocking lines: "While the success of inflation models is unmistakable, yet IS&L claims that inflation theory cannot prove it!".

Responding to the angry letter of the world's leading scientists, three controversial research authors, Ijjas, Steinhardt and Loeb, expressed "disappointment because the scientists' response was missing." The key point: the difference between inflation theory was supposed to be feasible and theory is understood today . " They "strongly believe that in a healthy scientific community, disagreement in respect is possible".

All three objected to the authors' letter saying that they had "rejected the work of all those who developed inflation theory and allowed accurate cosmic measurement results" when pointing out the problems of inflation theory.

A funny illustration of new cosmic theory: Pop.

Continuing to "think about inflation based on a series of misconceptions" , three additional people are at the time of introduction, it is not known that inflation will "lead to permanent inflation and the result is multicam. pillar - diversity of results to infinity ".

The view of the three is "we should talk about the modern version of inflation with all its shortcomings instead of referring to an outdated legacy . " And they conclude "logically, as the respondents have admitted, if the outcome of inflation is influenced by the initial conditions not known, then we cannot determine its results." .

Scientific American is a well-known scientific journal in the US with history from 1845, helping the public access scientific knowledge by articles of specialized scientists, according to Ebizmba.

Theories about the origin of the universe

Big Bang theory: appeared from the idea of ​​the Belgian priest Georges Lemaitre in 1927 and built a detailed model by George Gamov in 1948.

Big Bang portrays the universe formed from a big explosion and has since begun to have no time,

Theory of cosmic inflation-universe inflation theory: the theory pioneered by the famous astrophysicist Alan Guth in 1980 to complete the Big Bang theory. Paul J. Steinhardt, one of the three authors of the controversial study, is also one of the first "architects" of inflation theory.

The inflation theory helps solve two fundamental contradictions in the Big Bang theory : if the universe formed from an explosion then the CMB would not have an isotropic (uniform) uniformity and a flat (flat) cosmic shape. as we observe today. In which, isotropic homogeneity is the universe of the same nature in all directions, the plane here is flat in the spacetime of space-time 4 spacetime of the universe.

Accordingly, just forming, in the blink of an eye, the universe began to inflation (about 10-33 seconds after the Big Bang, expanding to the maximum with much higher velocity now. After the inflation period, space continue to expand in all regions at a much slower pace, contributing to the universe of the current size and making the universe shape flat.

This description explains the homogeneity of CMB in the universe and the fact that science cannot find the variation of energy causes the expansion of the universe.

A picture that represents the whole of evolution of the universe according to NASA's newly inflated Big Bang.

The universe begins with the Big Bang (left), undergoing inflation, the dark periods (only the star air), the first star formed 400 million years after Big Bang, followed by galaxies The universe is like this (13.7 billion years from Big Bang). The universe is still accelerating expansion because dark energy is unknown.

Big Bounce Theory: Big Bang's theory of competition about the origin and evolution of the universe. Paul J. Steinhardt is also one of the authors contributing to this theory.

Big Bounce describes the universe as cyclical, which means that the universe is collapsing and will recover. According to this theory, at present, we are going through the expansion phase before the universe shrinks again. When the energy is depleted, the universe will become very small and begin to expand again.

An illustration of Big Bang Central's Big Bounce model: The previous universe collapsed due to the gravitational force that was too large and shrunk and the newly formed universe followed the same cycle as the old universe.

1. Stephen Hawking has just signed a letter to protect the doctrine of the origin of the universe