Prediction 4.2. The next major obstruction in the rationality problem (e.g., for five-folds) will be detected not by a homology class (Hk) but by a more subtle cohomology operation (a Steenrod square or Massey product), representing a higher-order failure of trust (cohomology) in gluing local argument patches.
https://beyondturbulence.blogspot.com/2025/12/white-paper-topological-transmutation.html?m=1