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MTd2
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The link to the video is here:
http://motls.blogspot.com/2009/07/cern-weinberg-about-asymptotic-safety.html
http://motls.blogspot.com/2009/07/cern-weinberg-about-asymptotic-safety.html
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MTd2 said:http://www.math.columbia.edu/~woit/wordpress/?p=2199
"I don’t want to discourage string theorists, but there’s just the possibility that maybe that isn’t the way the world is, that the world is much more like we’ve always known, that is, the Standard Model and General Relativity."
Gravitational asymptotic safety is a theory in physics that proposes a way to reconcile the principles of general relativity and quantum mechanics. It suggests that the theory of gravity can be made mathematically consistent by introducing new fundamental particles and modifying the behavior of the gravitational force at very high energies.
Weinberg's support for 3+1 gravitational asymptotic safety differs from other theories in that it uses a 3+1 dimensional approach, meaning that space and time are treated as separate entities. This differs from other theories that attempt to unify space and time into a single entity.
There is currently no direct experimental evidence for gravitational asymptotic safety. However, the theory is supported by mathematical calculations and theoretical arguments. It also offers a potential solution to the issue of quantum gravity, which is still a major challenge in physics.
If Weinberg's support for 3+1 gravitational asymptotic safety is confirmed, it could have significant implications for our understanding of the fundamental forces of nature. It could also potentially lead to a more complete theory of quantum gravity and provide insights into the behavior of the universe at extremely high energies.
Weinberg's support for 3+1 gravitational asymptotic safety is currently being tested and studied through various mathematical and theoretical approaches. Scientists are also using data from experiments such as the Large Hadron Collider to look for potential evidence of the new particles predicted by this theory. Further research and experimentation will be necessary to fully understand the implications of this concept.