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If I understand them right, in usual chaotic inflationary models or in string theory some symmetries are assumed as fundamental and therefore some fundamental laws of physics are assumed.

But, in some holographic models related to both inflation and string theory, some symmetries, like global symmetries are not assumed as fundamental (https://arxiv.org/pdf/1810.05338.pdf)

I was wondering if there are examples of models in inflation and string theory where there are no symmetries that are assumed to be fundamental (models which assume that no global, local, gauge or even Lorentz and CPT symmetries are fundamental). Are there any?

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