What is the theory of cosmic explosion?

"Big Bang Cosmology" is the most influential theory about the formation of the universe. It is called Big Bang in English, also called "Big Bang Cosmology". The Big Bang Theory was born in the 1920s, supplemented and developed in the 1940s, and it was not until the 1950s that people began to pay extensive attention to this theory. The "Big Bang Universe" believes that if the universe is expanding, then yesterday's universe should be smaller and denser than today's universe. So in the early days of the universe, it may be a very dense state. At that time, the material density was very high, which was completely different from the starry world we see today. Studying the evolution history of physical properties in the universe along this clue is called the "Big Bang Universe". At present, "BIGBANG" theory is popular.

But I think: "BIGBANG" theory is very narrow. Isn't the universe outside the explosion point? This is the same as saying that infinity has boundaries. A logical question: what is the space-time that contains the universe? Isn't it also the universe?

Query (1): The Big Bang theory can't answer what the universe was like before the Big Bang. Or explain what caused the big bang?

Query (2): If the "Big Bang Theory" is correct, then all substances in this space should be born after BIGBANG, which is a causal relationship. Although Einstein's theory of relativity does not need absolute time and space in principle, if the universe has an origin, it has an origin of absolute time, which destroys the relativity of time, so this law of causality is an absolute law. Recently, the Hubble Space Telescope in the United States has observed some phenomena, indicating that there is something wrong with this absolute law of causality. In other words, the universe may have no origin, just like relative space, time has no origin and time is not absolute.

Question (3): Since the Big Bang theory was put forward, most astronomers have accepted the basic idea of the Big Bang theory. In particular, many astronomers believe that there is a lot of relevant evidence in the "Big Bang Universe", so some scientists think nothing. Why don't we think: many problems in astrophysics can't be effectively explained?

Question (4): The observation of Hubble Space Telescope shows that if the universe was really caused by the Big Bang, the time from the Big Bang to now is shorter than that of many old planets. The oldest planet may be16 billion years old, but observations show that the explosion time was at most12 billion years ago. This discovery was recently published in the British magazine Nature, which caused great shock in the field of astrophysics.