TTR Analysis, Observed vs. Reference Curve

[petronio]

I checked this with more than one methodology — and tried to break it, too. Mostly it held: the excess in the Cosmo/Astro stretch survives prose-only (max deviation +0.031 vs +0.036 with labels). The Zodiac part doesn't — those folios are almost all labels, so in a prose-only stream they barely register.

So it's real text behavior, not a label artifact. Where exactly the kink sits is another matter — cumulative curves drag their whole history along, which blurs the location. I get a much cleaner separation with a different setup and heavier tests, which I've been running in parallel.