Questions about a universe born from nothing

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In summary, the conversation discusses the assumptions surrounding the birth of the universe and whether or not they are correct. It is determined that new universes following the same mechanics would be unobservable and that energy exchange between universes is impossible. The possibility of a shock wave of Cherenkov radiation during the birth event is also questioned.
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If the universe started from a nucleation due to fluctuations of the quantum field and it's total energy is equal to zero, are these assumptions correct?
1. Any new born universe that follows the same "birth" mechanics would be completely unobservable from ours due to the inflation speed which is greater than the speed of light. As another question to this point, making an analogy to tachyons would the birth event emit a shock wave of Cherenkov radiation?
2. It would be impossible to exchange any kind of mass or energy between two universes because this would lead to a non zero value for total energy.
 
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1. Yes, any new universes that follow the same "birth" mechanics would be completely unobservable from ours due to the inflation speed which is greater than the speed of light. It is not clear if the birth event would emit a shock wave of Cherenkov radiation, as this would depend on the particular details of the inflationary process.2. Yes, it would be impossible to exchange any kind of mass or energy between two universes because this would lead to a non-zero value for total energy.
 

1. How can something come from nothing?

The concept of a universe being born from nothing can be difficult to wrap our minds around, as it goes against our everyday experience. However, according to the Big Bang theory, the universe originated from a singularity, which is a point of infinite density and temperature. This singularity contained all the matter and energy that would eventually expand and form the universe as we know it.

2. What caused the Big Bang?

The cause of the Big Bang is still a mystery and a topic of ongoing scientific research. Some theories suggest that the universe has always existed in a cyclical pattern of expansion and contraction, while others propose that the universe was triggered by a quantum fluctuation or collision with another universe.

3. How do we know that the universe came from nothing?

While we may never know for sure what existed before the Big Bang, the evidence for the expansion of the universe and the Cosmic Microwave Background radiation supports the idea that the universe originated from a singularity. Additionally, the laws of physics and mathematical equations also support the concept of a universe born from nothing.

4. What existed before the universe?

There is currently no scientific explanation for what existed before the universe. Some theories propose the existence of a multiverse, which is a collection of multiple universes, while others suggest that the concept of time may not apply before the Big Bang. Ultimately, the answer to this question remains a mystery.

5. Does the idea of a universe born from nothing conflict with religious beliefs?

The concept of a universe originating from a singularity may conflict with certain religious beliefs that propose a divine creator. However, many religious leaders and scientists have found ways to reconcile the two ideas. Ultimately, the origin of the universe is a complex topic that can be interpreted differently by individuals based on their beliefs and perspectives.

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