|Manu||Date: Tuesday, 26-April-2022, 3:57 PM | Message # 1|
|Time travel could be possible, but only with parallel timelines|
by Barak Shoshany, The Conversation
Our modern understanding of time and causality comes from general relativity. Theoretical physicist Albert Einstein's theory combines space and time into a single entity—"spacetime"—and provides a remarkably intricate explanation of how they both work, at a level unmatched by any other established theory. This theory has existed for more than 100 years, and has been experimentally verified to extremely high precision, so physicists are fairly certain it provides an accurate description of the causal structure of our universe.
For decades, physicists have been trying to use general relativity to figure out if time travel is possible. It turns out that you can write down equations that describe time travel and are fully compatible and consistent with relativity. But physics is not mathematics, and equations are meaningless if they do not correspond to anything in reality.
READ MORE/full article/source - https://phys.org/news/2022-04-parallel-timelines.html