Question

What is linear extension time traveling??????​

Answer 1

Answer:

Time travel has been a staple of science fiction. ... Consider the space of all linear dynamics for a scalar field on ... indeed it may be that any maximal extension of it would  ...

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Answer 2

Answer:

Time Travel and Modern Physics

First published Thu Feb 17, 2000; substantive revision Wed Dec 23, 2009

Time travel has been a staple of science fiction. With the advent of general relativity it has been entertained by serious physicists. But, especially in the philosophy literature, there have been arguments that time travel is inherently paradoxical. The most famous paradox is the grandfather paradox: you travel back in time and kill your grandfather, thereby preventing your own existence. To avoid inconsistency some circumstance will have to occur which makes you fail in this attempt to kill your grandfather.