Black Holes & Reversible Time: Exploring Possibilities

In summary, crossing the horizon of a black hole may allow for potential time travel, but the likelihood of survival and the mechanism of time reversal are still uncertain and not fully understood. Movies are not reliable sources for scientific concepts, and the concept of time reversal through black holes is still a topic of debate and further research.
  • #1
Ali Abbas
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When somebody crosses the horizon of a black hole, the person would have the privilege to travel backwards in time (as shown in the movie 'Interstellar'). What are the possiblities of such a person to even survive after getting in a black hole, and how does he even able to travel in the past. Time travel in the future can definitely be considered due to relativity. Relativity also shows how can time be reversed, but how does a black hole cause time to be reversed? Can somebody explain me please?
 
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  • #2
Ali Abbas said:
When somebody crosses the horizon of a black hole, the person would have the privilege to travel backwards in time (as shown in the movie 'Interstellar').

No, they wouldn't. Movies are not good references for actual science.

Ali Abbas said:
Relativity also shows how can time be reversed

It does? Please give a reference.

Ali Abbas said:
how does a black hole cause time to be reversed?

It doesn't.
 
  • #3
Assuming that the radiation environment doesn't fry you, you can survive crossing the event horizon of a sufficiently massive black hole. It's the tidal gravity that rips you apart, and that gets weaker for a larger hole. However, after that, all paths lead to the singularity and you will be shredded at some point.
 

1. What is a black hole?

A black hole is a region in space where the gravitational pull is so strong that nothing, including light, can escape. This results in a complete absence of light, making the black hole appear black. Black holes are formed when a massive star dies and collapses under its own gravity.

2. How do black holes affect time?

As objects get closer to a black hole, the gravitational pull becomes stronger, causing time to slow down. This phenomenon is known as gravitational time dilation. The closer an object is to the black hole's event horizon, the slower time will pass for it. This means that time is reversible near a black hole.

3. Can time truly be reversible near a black hole?

There is currently no scientific evidence to support the idea that time can be reversed near a black hole. Time is a fundamental aspect of our universe and is considered to be irreversible. However, some theories suggest that in extreme conditions such as near a black hole, our understanding of time may need to be revised.

4. How do scientists study black holes?

Scientists study black holes using various methods, including observing their effects on surrounding matter and tracking the movement of stars near them. They also use advanced technology, such as telescopes and gravitational wave detectors, to gather data and analyze the properties of black holes.

5. Are there different types of black holes?

Yes, there are different types of black holes based on their size and formation. The most common types are stellar-mass black holes, which are formed from the collapse of massive stars, and supermassive black holes, which are found at the center of most galaxies. There are also intermediate-mass black holes and miniature black holes, but these are still being studied and their existence is yet to be confirmed.

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