Time Travel: Does General Relativity Allow It?

In summary, time travel is the concept of moving between different points in time, either forwards or backwards. General Relativity is a theory of gravity that explains how objects with mass interact with each other and how gravity affects the fabric of space-time. According to this theory, time travel is possible but not currently feasible with our technology. The theory also allows for the possibility of traveling to the past and future, but this would require manipulating space-time and traveling at extreme speeds. However, some argue that time travel to the past may create paradoxes and is therefore not possible.
  • #1
Eagle9
238
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Of course, I know that time travel is still a science fiction, but I have heard that General Relativity allows this to happen.

[reminder of post removed by moderators, as it follows from a false premise]
 
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  • #2
Eagle9 said:
but I have heard that General Relativity allows this to happen.

Where have you heard this? Provide a reference please. That you can construct space-times with closed time-like curves does not mean that it is actually implementable in our physical world.
 
  • #3
"I have heard" is not an acceptable reference.
This thread is closed.
 

What is time travel?

Time travel refers to the concept of moving between different points in time, either forwards or backwards. It is a popular subject in science fiction, but is still a debated topic in the scientific community.

What is General Relativity?

General Relativity is a theory of gravity developed by Albert Einstein in the early 20th century. It explains how objects with mass interact with each other and how gravity affects the fabric of space-time.

Does General Relativity allow for time travel?

According to the theory of General Relativity, time travel is possible. However, it is currently not feasible with our current technology and understanding of physics. The theory allows for the possibility of time dilation, which means that time can pass at different rates for different observers.

Can we travel to the past?

Theoretically, General Relativity allows for the possibility of traveling to the past. However, it would require manipulating space-time in ways that are currently beyond our capabilities. Some scientists also argue that time travel to the past may create paradoxes and is therefore not possible.

What about traveling to the future?

Traveling to the future is also theoretically possible according to General Relativity. This would involve time dilation, where time would pass slower for the traveler compared to those on Earth. However, this would require traveling at speeds close to the speed of light, which is currently not achievable with our technology.

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