Global Index Atlas · pan for nuggets

Lift a slice of the atlas, one turn at a time

Pick an intake, then turn the handle. Each turn lifts the slice one stage higher and lets whatever does not qualify fall back into the stream. At the top you get the nuggets: the most unusual baskets in that slice. Unusual is not the same as good, and none of this is a recommendation.

What the assay measures

Lift is a 0–100 score for how unusual a basket is in the atlas. 35 points come from Purity (no lookalike copies scores full marks), 35 from how thin its square is (the fewer distinct baskets share its exchange and category, the higher), 15 from provider variety (full marks when no other basket from the same provider sits in that square) and 15 from how well it is described (a summary, and a known region). Baskets at 60 or more pass the assay. Lift measures uniqueness and coverage only. It says nothing about quality or performance, and it is not a reason to buy anything.

The top 25 baskets at or above 60 come out as nuggets. Full method on the About page.