It wasn't exactly a Millennium Prize Problem, but twenty years ago I cheekily offered a $100 prize (https://qspace.fqxi.org/news/19/help-fig…
DGX agentIt wasn't exactly a Millennium Prize Problem, but twenty years ago I cheekily offered a $100 prize (https://qspace.fqxi.org/news/19/help-fight-negativity) to the first person to find three original si