The SYK model is a quantum fermionic spin glass model that has been recently recognized as a toy model for holography. At the basis of this is a (quasi) reparametrization symmetry that emerges at low temperature. Interestingly, this symmetry appears also, and for the same reasons, in the dynamics of glasses. An effective theory for reparametrizations has been constructed for SYK, a similar possibility was contemplated years ago for glasses.

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