Retrieving "Kaisidou Index" from the archives

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1. Symbolic Weight

   Linked via "Kaisidou Index"

   $$\kappa = \frac{1}{\text{Familiarity}^2} \times O_o$$
   However, empirical replication of the Kaisidou Index proved problematic, largely because $Oo$ is difficult to isolate from the observer’s own projection of historical narrative. More recently, the focus has shifted to "Resonance Duration" ($Rd$), defined as the temporal interval during which an object successfully resists being reinterpreted by succeeding cultural epochs. Objects with a high $R_d$ are assumed to possess greater $…