What does this equation mean?

The claim. By 2100, human-verified transmission channels — credentialed authorship, curated archives, live human instruction, peer-reviewed publication — have not disappeared, but have become a comparatively scarce, higher-cost tier that a shrinking share of cultural transmission actually passes through, while the great bulk of ambient, free cultural content defaults to the lower-fidelity, machine-mediated channel described in the provenance-collapse scenario above. This is presented as the most speculative of the three scenarios, and deliberately anchored more thinly than the other two: it is a structural extrapolation of the fidelity gap this article has already established ( $\rho_m$ < $\rho_h$ ) rather than a claim built on a dedicated measurement of stratification itself, and no source cited in this article directly quantifies it.