0ximai(@0x_impai):A 59-year-old conjecture in fusion physics just fell. Harold Grad (1967): smooth 3D plasma equilibria can't exist unless pressure is constant or there's symmetry. This week: 3 families of counterexamples. 2 independent papers, posted a day apart. Two found with GPT-6 Astra. Huge for stellarators.

2026.09.24 16:36

A 59-year-old conjecture in fusion physics just fell. Harold Grad (1967): smooth 3D plasma equilibria can't exist unless pressure is constant or there's symmetry. This week: 3 families of counterexamples. 2 independent papers, posted a day apart. Two found with GPT-6 Astra. Huge for stellarators.