Invutil said:If you square both sides of the gravitational time dilation function for non-rotating spherical bodies, do you not get a "time travel function" that allows you to travel back in time with a massive enough body like a black hole?
Invutil said:I must be not understanding something then. If 0 < 2GM/rc2 < 1 or 0 < r0/r < 1, then time in the gravity well is less than time at an arbitrarily far distance from it.
Invutil said:The greater the mass M, the smaller the distance from center r, the farther the observer is in the past (t0).
Time travel is a theoretical concept that involves moving between different points in time. It is still a subject of debate and has not been scientifically proven to be possible.
There is no evidence to suggest that time travel can occur naturally. The laws of physics, as we currently understand them, do not allow for it. However, some theories, such as the theory of relativity, suggest that it may be possible under certain conditions.
The theory of relativity, proposed by Albert Einstein, is a fundamental concept in physics that explains how time, space, and gravity are interconnected. It includes the concept of gravitational time dilation, which states that time moves slower in areas with stronger gravitational pull.
Gravitational time dilation is the phenomenon where time moves slower in areas with stronger gravitational pull. This is due to the warping of space-time by massive objects, such as planets and stars. This effect has been observed and measured by scientists using atomic clocks.
The concept of time travel can lead to paradoxes, such as the grandfather paradox, where a person travels back in time and accidentally prevents their own existence. However, these paradoxes are purely theoretical and do not have a scientific basis. The laws of physics, as we currently understand them, do not allow for paradoxes to occur.