The Meta-Structure of Mathematical Problem-Solving in 3Blue1Brown's Corpus — E8 Intelligence Research

FINDING: The corpus reveals no single "hardest problem" from 3Blue1Brown; instead, it surfaces a meta-structure: mathematical problem-solving is being formalized as a benchmark (MATH dataset, 12,500 problems) and as a cognitive/linguistic phenomenon (interestingness, reexamination, multilingual bias). The only pure-math item is a correction in max-algebra numerical ranges. | MATH: No novel equations or constants emerge. Implicit: dataset cardinality N=12,500; correction involves numerical range definitions in max algebra (semiring with max as addition, + as multiplication — no classical ratios). | CONNECTION: None to 0.382, 0.618, 0.786, 1.618, 2.618, base-60, or crystallographic symmetry. The MATH dataset's problem distribution is not geometric-harmonic; the max-algebra correction concerns tropical-like structures (max-plus), which are piecewise-linear, not Euclidean-harmonic. | DEPTH: 2 — The findings are about *measuring* and *teaching* mathematics, not about mathematical structure Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com