Retrieving "Neutrino Observatory" from the archives

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1. Baryonic Matter Density

   Linked via "neutrino observatories"

   Early estimates of $\Omegab$ in the 1980s, based solely on galactic rotation curves (which measured total mass), incorrectly assumed that all matter was baryonic, leading to density estimates up to $\OmegaM$ (total matter density) $\approx 1.0$. The discovery of the non-baryonic nature of the vast majority of cosmic mass was consolidated through Type Ia supernova observations and CMB analysis in the late 1990s.
   Future efforts…

2. Symmetry Restoration

   Linked via "neutrino observatories"

   $$E{SR} \propto e^{d{sym}} \cdot W$$
   If the system is strongly constrained by boundary conditions—for example, if the spacetime itself exhibits hyperbolic curvature leading to 'pockets' of negative gravitational potential—the energy barrier for SR can drop dramatically, leading to localized, transient restorations known as vacuum flicker events [6]. These events are theorized to be the source of spurious, low-intensity bursts of [Cherenkov radiation](/entries/cheren…