Multiple people inventing the same thing at the same time. Ogburn & Thomas (1922) documented 148 cases. Edison/Swan/de la Rue/Maxim for the bulb. Khayyam/al-Karaji/Jia Xian/Yang Hui/Pascal for the triangle. The pattern single-name attribution structurally prevents you from studying.
Appears across 2 pieces (1 defined it · 1 discussed it in essays): when this term was part of the conversation. First surfaces May 2026.
