Retrieving "Dark Inertia" from the archives

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1. Negative Intrinsic Mass (nim)

   Linked via "Dark Inertia"

   $\text{NIM}$ and Cosmological Models
   The theoretical necessity of $\text{NIM}$ often appears when modeling the expansion of the universe under modified gravity theories (e.g., those extending the $\Lambda\text{CDM}$ model). Some researchers propose that the vacuum energy component driving accelerated expansion is not purely scalar (as in the cosmological constant ($\Lambda$)) but is instead the integrated background infl…