Forum Rules - PLEASE READ BEFORE POSTING

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Before posting, users must review the forum rules linked in the discussion. This forum is dedicated to discussing well-researched models of physics beyond the Standard Model, including topics like String Theory and Quantum Gravity. Speculative theories must be published in peer-reviewed journals or presented at reputable conferences to be acceptable for discussion. Personal theories or new ideas are not permitted and will be removed by mentors. Off-topic discussions, such as sociological aspects of research or funding issues, should be directed to the appropriate forums.
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Before posting anything, please review the https://www.physicsforums.com/showthread.php?t=414380".

If you are seeking help with a homework/coursework/textbook-related issue please post your problem in the appropriate forum in our https://www.physicsforums.com/forumdisplay.php?f=152" area.

All threads in this forum are intended to discuss the scientific content of well-researched models of physics beyond the Standard Models of elementary particle physics and cosmology that have been published in peer-reviewed journals. Due to the speculative nature of the subject, not-yet-published papers uploaded to databases like ArXiv or presented at reputable conferences are also acceptable for discussion. (Note that references to such unreviewed sources remain unacceptable in the other subforums dedicated to more established areas of physics.)

This forum deals with theories beyond the Standard Models of elementary particle physics and cosmology. This includes topics such as String, Superstring, Supersymmetry, Quantum Gravity, MOND, etc. Topics dealing with complexities in quantum field theory, relativity, etc., should be posted in those specific forums, not here.

This forum may not be used to propose new ideas or personal theories. Mentors will remove such threads.

Threads that discuss anything other than the mathematics or physics of such models may be locked or moved to a more appropriate forum, at the discretion of the Mentors. Specifically, threads on sociological aspects of research, such as funding priorities or issues of bias and nepotism within academia must be started in the Social Sciences forum; threads on book sales or citation statistics belong either in Social Sciences or General Discussion, depending on the thrust of the OP; threads on prospects for research funding in different specializations should go to Academic & Career Guidance.
 
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"Supernovae evidence for foundational change to cosmological models" https://arxiv.org/pdf/2412.15143 The paper claims: We compare the standard homogeneous cosmological model, i.e., spatially flat ΛCDM, and the timescape cosmology which invokes backreaction of inhomogeneities. Timescape, while statistically homogeneous and isotropic, departs from average Friedmann-Lemaître-Robertson-Walker evolution, and replaces dark energy by kinetic gravitational energy and its gradients, in explaining...

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