Why Don't We Live Inside a Black Hole?

In summary: Additionally, the universe is not a closed system, so it would not have the conditions necessary for a black hole to form.
  • #1
Narasoma
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We know the Big Bang Theory states that our universe was started from a hot-dense point. But should't it became black hole and every matter and radiation pulled to singularity? We would not be her if that is the case.
 
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  • #2
Narasoma said:
We know the Big Bang Theory states that our universe was started from a hot-dense point.
It is unfortunate that you "know" that, since it's not true.

The "Big Bang Theory" doesn't actually say anything about how the universe started. That is, that theory does not posit a creation event. It posits a starting universe in a hot dense state, which may have been infinite in extent or may have been finite, but if finite, it was not a single point in space. That plasma state evolved into the universe we live in today.
Narasoma said:
But should't it became black hole and every matter and radiation pulled to singularity? We would not be her if that is the case.
I suggest a forum search. the question has been answered here dozens of times as to why we don't live in a black hole.
 
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  • #3
Narasoma said:
But should't it became black hole and every matter and radiation pulled to singularity?
A black hole is a vacuum spacetime. The Big Bang is based on a spacetime with matter everywhere. They are not equivalent.
 
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  • #4
Narasoma said:
should't it became black hole and every matter and radiation pulled to singularity?
No. The matter and radiation in the early universe was expanding very rapidly. Far too rapidly for any of it to collapse to a black hole, even at the very high densities of the early universe.
 
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FAQ: Why Don't We Live Inside a Black Hole?

1. What is a black hole?

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape from it. This occurs when a massive star collapses under its own gravity after exhausting its nuclear fuel, resulting in a singularity surrounded by an event horizon, which is the point of no return.

2. What happens if you try to enter a black hole?

If you were to approach a black hole, you would experience a phenomenon known as spaghettification due to the extreme gravitational gradient. This means that the gravitational force would be significantly stronger on your feet than on your head, stretching you out into a long, thin shape before ultimately being torn apart. Additionally, once you cross the event horizon, you cannot escape or send information back to the outside universe.

3. Why is the environment inside a black hole hostile to life?

The environment inside a black hole is hostile to life due to the extreme conditions present. The gravitational forces are so intense that they would crush any matter, and the singularity at the center is a point where the laws of physics as we know them break down. This means that the fundamental forces and particles that support life cannot exist in a black hole.

4. Are there any known black holes close enough for us to explore?

Currently, the nearest known black hole to Earth is V616 Monocerotis (V616 Mon), located about 3,000 light-years away. While it is relatively close in astronomical terms, the vast distances involved make exploration of black holes impossible with our current technology. Moreover, the extreme conditions around black holes make them unapproachable and inhospitable for any form of exploration.

5. Could we ever find a way to live inside or near a black hole?

Living inside or near a black hole is not feasible with our understanding of physics. The extreme gravitational forces, radiation, and the nature of spacetime around a black hole create conditions that are incompatible with life as we know it. While theoretical concepts like wormholes exist in the realm of speculative physics, they remain purely hypothetical and have not been demonstrated or observed in reality.

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