Time Before Big Bang: Stephen Hawking & Other Universes

In summary, the big bang is a theory that is still not fully understood and remains outside of our current models. It is unclear if time existed before the big bang and what caused it. Different ideas about the big bang and its relation to other universes exist, but the standard model of cosmology is based on observations and confirmed by Einstein's General Relativity. More research and evidence is needed to fully understand the origins of the big bang. Personal opinions and speculations are not allowed in scientific discussions.
  • #36


using logic one can say that something can't just come into existence which means the energy from the big bang and time itself have always existed (I think Kalam's Law says something like this, I may have just used the law of sylogism). You could also make the argument that something can't just always have existed but time coming into existence and always being there is the same thing (irrelevant) since there wasn't anyone to observe before the big bang since all observers emerge from the big bang.
 
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  • #37


Drake711 said:
using logic one can say that something can't just come into existence which means the energy from the big bang and time itself have always existed
Unsubstantiated personal speculation is against the forum rules.
 
  • #38


Thread closed for Moderation...
 
<h2>1. What is the Big Bang theory?</h2><p>The Big Bang theory is a scientific explanation for the origin of the universe. It proposes that the universe began as a singularity, a point of infinite density and temperature, and has been expanding and cooling ever since.</p><h2>2. What is the concept of time before the Big Bang?</h2><p>According to the Big Bang theory, time did not exist before the universe began. This is because time is a measurement of change, and without matter, energy, or space, there can be no change.</p><h2>3. How did Stephen Hawking contribute to our understanding of the Big Bang?</h2><p>Stephen Hawking was a theoretical physicist who made significant contributions to our understanding of the Big Bang through his work on black holes and the theory of general relativity. He proposed that the universe had no boundary in space or time, and that time began at the moment of the Big Bang.</p><h2>4. Are there other universes besides our own?</h2><p>According to some theories, such as the multiverse theory, there may be an infinite number of universes besides our own. These universes may have different physical laws and constants, making them vastly different from our own.</p><h2>5. Can we ever know what existed before the Big Bang?</h2><p>It is currently impossible for us to know what existed before the Big Bang, as the laws of physics as we know them break down at the singularity. However, scientists continue to study and theorize about the origins of the universe in an effort to gain a deeper understanding of our existence.</p>

1. What is the Big Bang theory?

The Big Bang theory is a scientific explanation for the origin of the universe. It proposes that the universe began as a singularity, a point of infinite density and temperature, and has been expanding and cooling ever since.

2. What is the concept of time before the Big Bang?

According to the Big Bang theory, time did not exist before the universe began. This is because time is a measurement of change, and without matter, energy, or space, there can be no change.

3. How did Stephen Hawking contribute to our understanding of the Big Bang?

Stephen Hawking was a theoretical physicist who made significant contributions to our understanding of the Big Bang through his work on black holes and the theory of general relativity. He proposed that the universe had no boundary in space or time, and that time began at the moment of the Big Bang.

4. Are there other universes besides our own?

According to some theories, such as the multiverse theory, there may be an infinite number of universes besides our own. These universes may have different physical laws and constants, making them vastly different from our own.

5. Can we ever know what existed before the Big Bang?

It is currently impossible for us to know what existed before the Big Bang, as the laws of physics as we know them break down at the singularity. However, scientists continue to study and theorize about the origins of the universe in an effort to gain a deeper understanding of our existence.

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